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Aryan Pandey - Conductor of Electricity 

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Aryan Pandey - Conductor of Electricity 

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Heaviness and Lightness of substances in water
https://drive.google.com/drive/my-drive

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https://photos.app.goo.gl/FVf2MXKNytutxc558
By Tanya Reddy

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venya ashok : solubility of substance in water

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venya ashok : solubility of substance in water

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https://drive.google.com/file/d/1jBdj_dZbZIxUsGtsnTJoQL9cUqBhu9_O/view?usp=sharing

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Likith 6a

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Shivam Goyal - Vl A (Heaviness and lightness of materials with respect to Water)

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Shivam Goyal - Vl A (Heaviness and lightness of materials with respect to Water)

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Organic farming is an agricultural system that uses fertilizers of organic origin such as compost manure, green manure, and bone meal and places emphasis on techniques such as crop rotation and companion planting. It originated early in the 20th century in reaction to rapidly changing farming practices.Compared with conventional agriculture, organic farming uses fewer pesticides, reduces soil erosion, decreases nitrate leaching into groundwater and surface water, and recycles animal wastes back into the farm.Here are some key reasons why organic farming can be described as a step towards sustainable agriculture –

Reduces Exposure To Harmful Chemicals. ...

Consumes Less Energy. ...

Reduces Nitrogen Run-Off Induced Pollution. ...

Facilitates Healthy Soil Formation. ...

Combats the Effects of Global Warming.

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Divyalakshmi Vishwanath Day 2 - Electricity powered vehichles

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Divyalakshmi Vishwanath Day 2 - Electricity powered vehichles

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An EV is a shortened acronym for an electric vehicle. EVs are vehicles that are either partially or fully powered on electric power.

Electric vehicles have low running costs as they have less moving parts for maintaining and also very environmentally friendly as they use little or no fossil fuels (petrol or diesel). While some EVs used lead acid or nickel metal hydride batteries, the standard for modern battery electric vehicles is now considered to be lithium ion batteries as they have a greater longevity and are excellent at retaining energy, with a self discharge rate of just 5% per month
Battery Electric Vehicles (BEV)

Compared to an internal combustion engine, battery powered electric vehicles have approximately 99% fewer moving parts that need maintenance.

Advantages of a BEV:

Creates very little noise

No exhaust, spark plugs, clutch or gears

Doesn't burn fossil fuels, instead uses rechargeable batteries

BEVs can be charged at home overnight, providing enough range for average journeys. However, longer journeys or those that require a lot of hill climbs may mean that the fuel cells require charging before you reach your destination, although regenerative braking or driving downhill can help mitigate against this by charging the battery packs.

The typical charging time for an electric car can range from 30 minutes and up to more than 12 hours. This all depends on the speed of the charging station and the size of the battery.

In the real world, range is one of the biggest concerns for electric vehicles, but is something that is being addressed by industry.

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Organic farming is an agricultural system that uses fertilizers of organic origin such as compost manure, green manure, and bone meal and places emphasis on techniques such as crop rotation and companion planting. ... Biological pest control, mixed cropping and the fostering of insect predators are encouraged.Compared with conventional agriculture, organic farming uses fewer pesticides, reduces soil erosion, decreases nitrate leaching into groundwater and surface water, and recycles animal wastes back into the farm. These benefits are counterbalanced by higher food costs for consumers and generally lower yields.Definition of organic farming

Unprocessed products: vegetables, cereals, fruits, cotton, flowers, animals, eggs or milk;

Processed products for human consumption: cheese, bread or instantaneous meals;

Food for animals like organic soy cakes;

Materials for vegetative reproduction and seeds
by meghna r

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Nehasree Dash                                                                       

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Nehasree Dash                                                                       

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Solubility and insolubility of materials in water

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Sources of Food

Sources of Food. Well, there are two sources of food – plants and animals. ...

Plants as a Source of Food. Much of the food we eat comes from plants, trees, crops, bushes, leaves and sometimes even roots. ...

Animals as a Source of Food. Not all of our food comes from plants, We get meat, milk and eggs from animals

Fungi like mushrooms are also source of food obtained from other than plants and animals.

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Divyalakshmi Vishwanath day3 - Organic farming

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Divyalakshmi Vishwanath day3 - Organic farming

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Organic farming is an agricultural system that uses fertilizers of organic origin such as compost manure, green manure, and bone meal and places emphasis on techniques such as crop rotation and companion planting. ... Biological pest control, mixed cropping and the fostering of insect predators are encouraged.Compared with conventional agriculture, organic farming uses fewer pesticides, reduces soil erosion, decreases nitrate leaching into groundwater and surface water, and recycles animal wastes back into the farm. These benefits are counterbalanced by higher food costs for consumers and generally lower yields. Indeed, yields of organic crops have been found to be about 25 percent lower overall than conventionally grown crops, although this can vary considerably depending upon the type of crop. The challenge for future organic agriculture will be to maintain its environmental benefits, increase yields, and reduce prices while meeting the challenges of climate change and an increasing world population.

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organic food, fresh or processed food produced by organic farming methods. Organic food is grown without the use of synthetic chemicals, such as human-made pesticides and fertilizers, and does not contain genetically modified organisms (GMOs). Organic foods include fresh produce, meats, and dairy products as well as processed foods such as crackers, drinks, and frozen meals. The market for organic food has grown significantly since the late 20th century, becoming a multibillion dollar industry with distinct production, processing, distribution, and retail systems

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After nearly a century with the internal combustion engine dominating the personal transportation sector, it now appears that the electric vehicle is on the verge of experiencing rapid growth in both developed and developing vehicle markets. The broad-scale adoption of the electric vehicle could bring significant changes for society in terms of not only the technologies we use for personal transportation, but also moving our economies away from petroleum and lessoning the environmental footprint of transportation. This article investigates the role of standards, related training and certification for the electric vehicle. It is argued that the potential for the electric vehicle will be stunted without adequate attention being paid to standards, not only in terms of the speed of its uptake and smoothness of this transition, but also in terms of maintaining compatibility between jurisdictions, safety of the public, and helping to ensure environmental sustainability. We highlight a number of areas where new or adaptations of current standards, training and certification may be needed, notably in terms of batteries and charging infrastructures, electricity distribution and accounting for the environmental characteristics of this electricity, and different aspects of vehicle-to-grid and smart grid technologies.

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Electric Vehicles are means of transport that consume eclectic energy as fuel instead of traditional fuels such as petrol, diesel, and CNG. These vehicles may be powered through a collector system by electricity from off-vehicle sources or maybe inbuilt with a battery, solar panels, fuel cells, or an electric generator to convert fuel to electricity. Electric bikes, electric cars, electric rickshaws, etc are some examples of electric vehicles. Most of the trains including metros are already running worldwide through electricity.These are following factors which creates urgent need for use of electric vehicles:

To reduce pollution

To conserve non-renewable natural resources

To reduce import of petrol and diesel

To promote use of renewable energy

To reduce global warming

To fulfill the need of growing demand of more means of transport

The world population is increasing drastically day by day and the demand of means of transport also growing proportionally. Thus demand of fuel is also increasing.  Too much smoke comes out from traditional vehicles this cause air pollution which take many lives every year. These are following factors which creates urgent need for use of electric vehicles:

To reduce pollution

To conserve non-renewable natural resources

To reduce import of petrol and diesel

To promote use of renewable energy

To reduce global warming

To fulfill the need of growing demand of more means of transport

The world population is increasing drastically day by day and the demand of means of transport also growing proportionally. Thus demand of fuel is also increasing.  Too much smoke comes out from traditional vehicles this cause air pollution which take many lives every year.

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Electric Vehicles or EV, as they are known, are the buzz word of the global automobile industry today. With the growing concerns over deadly environmental impacts of carbon emissions, the world is left with no alternative but to explore, innovate and develop sustainable technologies which leads it to the carbon neutral era at the fastest pace possible. EVs are the fruit of such constant effort by mankind.
EVs are vehicles that are either partially or fully powered by electric power. Electric vehicles have low running costs as they have fewer moving parts for maintenance and also very environmentally friendly as they use little or no fossil fuels (petrol or diesel). They are very efficient and produce no pollution. These are emerging technologies today mainly due to energy cost reduction and minimization of emission levels.

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Merusha Mandal                                                         day 2===== Electric Car    

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Merusha Mandal                                                         day 2===== Electric Car    

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An electric car, battery electric car, or all-electric car is an automobile that is propelled by one or more electric motors, using only energy stored in batteries. Compared to internal combustion engine (ICE) vehicles, electric cars are quieter, have no exhaust emissions, and lower emissions overall.

Advantages of electric car

No Gas Required. Electric cars are entirely charged by the electricity you provide, meaning you don't need to buy any gas ever again. ...

More Convenient. ...

Savings. ...

No Emissions. ...

Popularity. ...

Safe to Drive. ...

Cost-Effective. ...

Low Maintenance.

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Sci feast project

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Tanvi Sinha - Solubility and Insolubility of Materials in Water

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Tanvi Sinha - Solubility and Insolubility of Materials in Water

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Sustainable technology is an umbrella term that meeting your needs without compromising the ability of future generations to meet their needs. Example of sustainable technology are :-

Public and electric transport.

LED light technology.

Solar power.

Public and electric transport.--

Efficient and affordable public transport enables economic advancement in cities, and facilitates access to markets and resources. Electric transport requires less maintenance and is less likely to break down. As a result, investment in electric transport infrastructure delivers better performance and better support.

LED light technology.--

The light-emitting diode (LED) is today's most energy-efficient and rapidly-developing lighting technology. Quality LED light bulbs last longer, are more durable, and offer comparable or better light quality than other types of lighting.

Solar power..--
power obtained by harnessing the energy of the sun's rays.
Advantages===

Solar power is pollution-free and causes no greenhouse gases to be emitted after installation.

Reduced dependence on foreign oil and fossil fuels.

Renewable clean power that is available every day of the year, even cloudy days produce some power.

Return on investment unlike paying for utility bills.

Disadvantages ====

Cost. The initial cost of purchasing a solar system is fairly high. ...

Weather-Dependent. Although solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops. ...

Solar Energy Storage Is Expensive. ...

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An electric car, battery electric car, or all-electric car is an automobile that is propelled by one or more electric motors,using only energy stored in batteries . Compared to internal combustion engine (ICE) vehicles, electric cars are quieter, have no exhaust emissions, and lower emissions overall.Advantages of electric cars are -

No Gas Required. Electric cars are entirely charged by the electricity you provide, meaning you don't need to buy any gas ever again

More Convenient

Savings

No Emissions

Popularity

Safe to Drive

Cost-Effective

Low Maintenance

Robert Anderson is often credited with inventing the first electric car some time between 1832 and 1839.

Norway, Iceland and Sweden had the highest share of plug-in electric vehicles sales in 2020.

the average electric cars pack's lifespan to be at around 200,000 miles, which is nearly 17 years of use if driven 12,000 miles per year.

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Meghna Menon IV A Day 1 - Sustainable Technology

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Meghna Menon IV A Day 1 - Sustainable Technology

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Sustainable technology is an umbrella term that describes innovation that considers natural resources and fosters economic and social development. The goal of these technologies is to drastically reduce environmental and ecological risks and to create a sustainable product.Examples of sustainable technology :

Public electric transport

Electric trucks

Cheap energy storage

Long-term storage

Plastic recycling

LED light efficiency

Accessible solar power

Carbon capture and storage
Sustain, protects our ecosystem and preserves natural resources for future generations. Going green and sustainable is not only beneficial for the company; it also maximizes the benefits from an environmental focus in the long-term.

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Divyalakshmi Vishwanath - Day 1 Sustainable Technology : Smart irrigation

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Divyalakshmi Vishwanath - Day 1 Sustainable Technology : Smart irrigation

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Sustainable technology is an umbrella term that describes innovation that considers natural resources and fosters economic and social development. The goal of these technologies is to drastically reduce environmental and ecological risks and to create a sustainable product.

Smart water irrigation-

Outdoor water savings can be achieved using smart irrigation technologies. Smart irrigation controllers and sensors have been developed to reduce outdoor water use by irrigating based on plant water need compared to traditional automatic system timers, which irrigate on a user-determined fixed schedule. This technology exists as a complete controller or as a sensor that can be added to an existing irrigation timer to create a smart controller.  Smart irrigation technology uses weather data or soil moisture data to determine the irrigation need of the landscape.

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EVs are vehicles that are either partially or fully powered on electric power

No fuel required so you save money on gas. Paying $0.10 per kW is the equivalent of driving on gasoline that costs less than $1 per gallon. ...

Environmental friendly as they do not emit pollutants. ...

Lower maintenance due to an efficient electric motor. ...

Better Performance

disadvantages-

Finding a Charging station - EV charging stations are fewer and further between than gas stations.

Charging takes longer.

The driving range on a full charge.

Higher Initial Purchase Cost.

Replacing the Batteries is Expensive.

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The first of these green technologies is plastic. Decomposable and inexpensive plastic is made into goods such as toys, farming supplies, and construction supplies. After usage, these are often sent to a landfill/digester, and the subsequent methane will be returned to the microbial course. These biodegradable and bio-based plastics will be in high demand due to growing government rules on plastics, a desire to reduce dependence on oil, and consumer preferences for green products. The process starts with methane, a potent global warming gas that is frequently considered “waste”, which is amply accessible and normally manufactured as a byproduct at waste treatment and agricultural facilities.

A second technology involves showering, which represents a huge portion of water and energy use in many houses, so users are happy to access water at a low cost. Fortunately, the innovative shower system can reduce water, energy use, and cost by 70 percent without reducing flow at the showerhead or time spent in the shower. A portable and affordable solar and wind device can be made available to cook, heat, and generate power. It is suitable for city housing and environmentally sensitive for national parks and other natural areas.
Buildings are also depending on green technology, especially because of shortcomings with more traditional technology. Expanded polystyrene is one of these traditional types, an insulation material used in buildings. Because this is not sustainable, more companies are applying green insulation as a healthy, affordable, and effective replacement. One of the reasons why green insulation is effective is because of the technology and raw material it requires. It often involves a revolutionary new manufacturing process that uses a growing organism – algae or mushroom root fibers – to turn waste cellulose into a rigid biological resin. It can also be allowed by flexible platform used to make sustainable materials for different products.

Of particular importance to buildings is that green insulations have a significantly better CO2 balance than its competitors, with a low energy footprint and the capacity to bind significantly more CO2 than other fibers. The insulation stores CO2 long-term while cutting buildings’ energy use. Of particular note is its use for the farming of cattails (a global resource nobody is using up to now). In the biomass, CO2 is stored in large quantities, so even cattail cultivation saves CO2 as degraded wetlands. Additionally, it saves costs, oil, and the health of individuals living in insulated houses.

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Aryan Jain, Grade VI A, DAY 1- Sustainable technology

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Aryan Jain, Grade VI A, DAY 1- Sustainable technology

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Sustainable Technology reflects an approach to technological development, characterized by creative and sound engineering, that recognizes the social, environmental, political, economic, and technical aspects of a proposed technological solution to a problem facing a society. If we are concerned about the environmental and social impacts of energy and technology, we need to critically examine a wide variety of problems facing society. Use this assessment to invest in and develop the technologies which are sustainable and viable enough to address these diverse requirements while leaving, at the same time, positive impacts or reduce negative impacts on environment and society. Few such areas of technological development include renewable energy, biofuels, green building, computer modelling, sustainable transportation, sustainable resource management, and sustainable water and waste water technology. These are some of the world’s fastest growing technological areas, and they hold many new and exciting opportunities.

Sustainable water technology has been well envisaged by innovators in the development and use of drip irrigation technology. After careful study of irrigation related water cycle and usage, drip irrigation has addressed the dire need of resource management without affecting the basic demands of irrigation. This has not only helped in conserving the precious resource but has also improved productivity significantly.

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Common examples of sustainable technology and innovations include:
Public and electric transport.
LED light technology
. Solar power.
Carbon capture and storage technologies. Self-sufficient and LEED buildings and construction methods.

All countries are concerned about sustainable global actions and generate consistent strategies to fulfill the commitments of the Paris Agreement. The required steps should incorporate:

efficient natural resource consumption

mobilizing financial sources

the shift from fossil fuel toward perpetual energy

climate change risk mitigation

supply chain improvement

across-industry transformation, including IT

keeping the balance between the urban and rural economy

taking nature-oriented solutions

vulnerable groups and areas protection

minimizing emission and pollution levels

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Sustainable technology is a term that describes innovation that considers natural resources and fosters economic and social development. The goal of these technologies is to reduce environmental and ecological risks and to create a sustainable product. The technology fosters a shift from non-biodegradable to biodegradable materials in its production and replaces
non-renewable with renewable resources. It prevents deterioration, contamination, and other negative environmental impacts through its use or production and is efficient in terms of its use of energy and resources.

Common examples of sustainable technology and innovations include:

Public and electric transport

LED light technology

Solar power

Carbon capture and storage technologies

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My topic is conductors and insulators

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Divyalakshmi Vishwanath- Opacities of Objects 

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Divyalakshmi Vishwanath- Opacities of Objects 

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https://drive.google.com/file/d/1B7eqUtr3ycX-7uYCymNAN8UUr3ASh39Q/view

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Get access to files anywhere through secure cloud storage and file backup for your photos, videos, files and more with Google Drive.

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Aryan Jain, VI A, 21 FEB, Conductors and Insulators

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Aryan Jain, VI A, 21 FEB, Conductors and Insulators

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topic food chain

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Hello I am from class IV A and my topic is Food Chain

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Please upload the video of your project here. Please note the last date to upload the video is on 28 Feb. Don't forget to include your name, date, and topic.

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Organic food is the umbrella term for agricultural, meat, and dairy products that are grown using natural methods without the use of any synthetic processing. Organic foods are perceived to be healthier because they are free from any of the synthetic pesticides, fertilizers, or herbicides commonly used to increase crop yield. Only natural fertilizers such as manure or compost are used in organic farming. It also includes processed foods, which were produced only using organic or natural farming methods. Buying organic foods at local markets will also support your small scale farmers financially, and you will get fresh farm produce directly.Organic foods are now commonly available in supermarkets after its increase in demand because of their health and environmental benefits. Organic farming is now being seen as profitable as many farms are following suit and producing organically. Here the regulatory authority comes into a placed who provides certificates to farms based upon their production methods, which are checked against a set standard. The set guidelines differ globally and include pointers like circular use of resources, ecological balance, and natural resources conservation.

The growth of the market for organic foods is due to its growing popularity among consumers who believe in its superior health benefits and environmental benefits. To get that sense of security of safe and healthy food, consumers are now willing to spend more money on that assurance. The increased price but then limits the affordability only. Also, the popularity of organic foods is higher among wealthy individuals who can afford them easily.

Organic foods also translate to animal welfare, where they are subject to humane treatment. They are not given any antibiotics or growth hormones but are instead grown naturally and in clean conditions. Organic farming also has some environmental benefits. It prevents soil erosion, uses less water, reduces pollution, increases soil fertility, and uses less energy.

According to studies, organically produced meat and milk has better nutritional value than conventionally raised ones, due to their better feed and better living conditions. Also, organic farming is free from any genetic modification or use of genetic engineering to make them resistant to pesticides. Organic foods do not use preservatives to make them last longer as they are sold at a nearby marketplace as quickly as possible while it is fresh. Conventional foods pose a significant health risk, and organic food is free from almost all of them.Organic foods are produced using a system of ecosystem management and not external agricultural inputs. It considers the environmental impacts of the methods and therefore does not include the use of any synthetic fertilizers, herbicides, pesticides, veterinary drugs, genetically modified seeds, or preservatives. Organic foods are very often locally grown foods. Even though now organic food is available at supermarkets, there is some additional benefit of buying it from your local markets. Directly buying from a small scale farmer will help them financially. Also, you get fresh produce straight from the farms without any added preservative or synthetic chemicals.

Some of the fruits with a higher pesticide level and should be brought organic are- apple, kale, bell peppers, cucumbers, celery, peaches, potatoes, spinach, strawberries, and grapes, tomatoes, and hot peppers. Consumers should try and buy organically grown meat if possible, due to the poor conditions and methods of raising animals by feeding them corn, grains, antibiotics, growth hormones, animal by-products, etc. These have a significant health risk for the animal and the person consuming their milk, meat or egg.

Organic foods are priced higher than conventionally grown food due to the more labour-intensive work, the cost of certification, and reduced crop yield as no chemical fertilizer is used to increase production in the short term. Due to this price difference, only a few sections of society have access to organic food. This is being improved slowly as the growth of the organic food industry has increased as demand for organic foods is ever increasing.

The higher price of organic foods is often the point of debate because if the nutritional value of organic food is not higher than that of conventionally produced food, then how can the increased cost be justified. Studies do show that organic food is safer, but some also indicate that nutritional value is less than that of genetically modified. Organic food products such as meat and dairy products, on the other hand, have a higher nutritional value than that of the conventionally raised ones.

Organic farming promotes sustainability over the long run. The aim is to maintain an ecological balance, soil fertility, and prevent and pest problems. The approach taken is proactive. Using methods such as crop rotation, inter-cropping, symbiotic associations, use of manure, and minimize tillage which encourages the soil fauna and flora. The groundwater which often gets polluted due to the use of synthetic fertilizers and pesticides is conserved. Organic farming can also act as a restorative method of farming to promote the biodiversity of the region by improving the air quality and reducing climate change.

The production of organic food has also brought about societal impact and changes. Due to the increasing demand for organic food in developed nations, some lower-income countries produce organic food just for exporting it to other nations. The people in these countries might not be able to buy organic products, which lead to food insecurity. Also, food processing companies prefer to buy from one big farming operation that limits the participation of small farmers in these markets.

Conclusion

Organic foods have both environmental and nutritional benefits backed up by studies. The system of farming it follows is based upon maintaining a balance with nature. It uses agricultural practices such as crop rotation, inter-crop farming to keep the soil enriched of its nutritional contents and prevent soil erosion. It also reduces pollution as the chemical fertilizers and pesticides used in farming seep down to pollute the groundwater. The demand for organic food is increasing, which will lead to an increase in organic farming practices. The essays contain detailed information about the same.