# data[].attributes.body
http://watertreatmentprocess.net/waste-water-treatment-process/primary-treatment-process-sewag/http://watertreatmentprocess.net/waste-water-treatment-process/primary-treatment-process-sewag/

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The salinity of saltwater is about 3.5% and about 0.1% for freshwater. This vastly different salt concentration affects the way fish regulate water and salts in their body, also called osmoregulation.

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Most fish live either in saltwater (oceans and seas) or freshwater (lakes, rivers, ponds and streams).

The key difference between the two lies in their physiological adaptation to the salinity of their environment.

The salinity of saltwater is about 3.5% and about 0.1% for freshwater. This vastly different salt concentration affects the way fish regulate water and salts in their body, also called osmoregulation.

Osmoregulation

Body tissues in a saltwater fish contain less salt than the water in which it lives. The saltier environment draws water from its body tissues, resulting in constant water loss through its skin and gills. To compensate and prevent dehydration, saltwater fish drinks large amounts of saltwater, produces small amounts of concentrated (salty) urine, and secretes salt through its gills.

In contrast, body tissues in a freshwater fish contain more salt than the water it lives in. As such, its body continually draws in water through its skin and gills. Due to this constant water 'intake', freshwater fish drinks very little water and produces copious amounts of diluted urine to avoid excessive water in its body tissues.

Freshwater fish tend to be hardier

Freshwater makes up only 2.5% of all water on Earth. Surprisingly, about 40% of all fish species are found in fresh waters.

Constantly changing environments and geographical separation of small bodies of freshwater habitats have resulted in a high degree of diversification of freshwater fish. The constantly changing environments have also forced them to be more adaptive to their environment.

On the other hand, saltwater fish enjoy a relatively more stable environment in a larger ocean environment with little fluctuation in temperature, salinity, ammonia, nitrate and pH levels. Therefore, freshwater fish are generally more adaptable and hardier than saltwater fish.

Tropical or cold

Freshwater fish can be cold-water fish or tropical fish. An example of cold-water freshwater fish is the goldfish, while tropical freshwater fish include angelfish, discus and cichilds.

Saltwater fish are all cold-water fish, such as clownfish, butterfly fish, eels, seahorses, and lionfish.

Best of both worlds

Some species can live in both freshwater and saltwater. Called euryhaline, they are commonly found in habitats such as estuaries and tide pools where the salinity changes regularly. An example is the Green Crab (Carcinus maenas) which can live in both saltwater and brackish water.

Another example is the Bull Shark. Unlike most other sharks, the Bull Shark can live in both ocean and freshwater estuaries and lakes. When it moves gradually into freshwater, its kidneys remove less salt and more urea from the bloodstream through urination, essentially reversing the normal marine shark method of osmoregulation. This adaptation allows it to live entirely in freshwater.

However, some fish are euryhaline because their life cycle involves migration between freshwater and seawater environments, such as salmon and eels.

Here at S.E.A. Aquarium, most of our fishy residents are saltwater species. Some of our freshwater residents include the Platinum Alligator Gar and African Tigerfish which can be found at the Central and South American exhibits, located next to the Poison Arrow Frogs habitat.

CURIOUS ABOUT WHAT ELSE IS IN THE AQUARIUM?

Most fish live either in saltwater (oceans and seas) or freshwater (lakes, rivers, ponds and streams).

The key difference between the two lies in their physiological adaptation to the salinity of their environment.

The salinity of saltwater is about 3.5% and about 0.1% for freshwater. This vastly different salt concentration affects the way fish regulate water and salts in their body, also called osmoregulation.

Osmoregulation

Body tissues in a saltwater fish contain less salt than the water in which it lives. The saltier environment draws water from its body tissues, resulting in constant water loss through its skin and gills. To compensate and prevent dehydration, saltwater fish drinks large amounts of saltwater, produces small amounts of concentrated (salty) urine, and secretes salt through its gills.

In contrast, body tissues in a freshwater fish contain more salt than the water it lives in. As such, its body continually draws in water through its skin and gills. Due to this constant water 'intake', freshwater fish drinks very little water and produces copious amounts of diluted urine to avoid excessive water in its body tissues.

Freshwater fish tend to be hardier

Freshwater makes up only 2.5% of all water on Earth. Surprisingly, about 40% of all fish species are found in fresh waters.

Constantly changing environments and geographical separation of small bodies of freshwater habitats have resulted in a high degree of diversification of freshwater fish. The constantly changing environments have also forced them to be more adaptive to their environment.

On the other hand, saltwater fish enjoy a relatively more stable environment in a larger ocean environment with little fluctuation in temperature, salinity, ammonia, nitrate and pH levels. Therefore, freshwater fish are generally more adaptable and hardier than saltwater fish.

Tropical or cold

Freshwater fish can be cold-water fish or tropical fish. An example of cold-water freshwater fish is the goldfish, while tropical freshwater fish include angelfish, discus and cichilds.

Saltwater fish are all cold-water fish, such as clownfish, butterfly fish, eels, seahorses, and lionfish.

Best of both worlds

Some species can live in both freshwater and saltwater. Called euryhaline, they are commonly found in habitats such as estuaries and tide pools where the salinity changes regularly. An example is the Green Crab (Carcinus maenas) which can live in both saltwater and brackish water.

Another example is the Bull Shark. Unlike most other sharks, the Bull Shark can live in both ocean and freshwater estuaries and lakes. When it moves gradually into freshwater, its kidneys remove less salt and more urea from the bloodstream through urination, essentially reversing the normal marine shark method of osmoregulation. This adaptation allows it to live entirely in freshwater.

However, some fish are euryhaline because their life cycle involves migration between freshwater and seawater environments, such as salmon and eels.

Here at S.E.A. Aquarium, most of our fishy residents are saltwater species. Some of our freshwater residents include the Platinum Alligator Gar and African Tigerfish which can be found at the Central and South American exhibits, located next to the Poison Arrow Frogs habitat.

CURIOUS ABOUT WHAT ELSE IS IN THE AQUARIUM?

# data[].attributes.attachment_link.description
Most fish live either in saltwater (oceans and seas) or freshwater (lakes, rivers, ponds and streams). The key difference between the two lies in their physiological adaptation to the salinity of their environment. The salinity of saltwater is about 3.5% and about 0.1% for freshwater.

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Water with in it is more dense. Objects that cannot float in fresh water may be able to float in seawater.

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Comparing the properties of fresh and salt water

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float objects in seawater than in fresh water. Many humans can "float" in seawater but not fresh water. The reason is that water with salt in it, is more dense. So objects that cannot float in fresh water may be able to float in seawater.

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3rd

leading cause of child death is diarrhea
https://water.org/our-impact/water-crisis/

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http://www.softschools.com/facts/science/salt_water_facts/2762/http://www.softschools.com/facts/science/salt_water_facts/2762/
70% of the world is covered in salt water. This makes salt water ecosystems the largest on earth.

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https://m.indiamart.com/proddetail.php?i=7475861212https://m.indiamart.com/proddetail.php?i=7475861212
Professional computer system are used to monitor and control different industrial and infrastructure based processes.

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5.2 billion people used a safely managed drinking-water service

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https://www.theguardian.com/global-development-professionals-network/2015/jul/01/global-access-clean-water-sanitation-mappedhttps://www.theguardian.com/global-development-professionals-network/2015/jul/01/global-access-clean-water-sanitation-mapped

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cwec.ca
Approximately 95.1% of water is salt water and 4.9% is clean water.

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https://outreach.glwater.org/Home/News/OCW_Safeguarding_Our_Water_1/tabid/241/Default.aspxhttps://outreach.glwater.org/Home/News/OCW_Safeguarding_Our_Water_1/tabid/241/Default.aspx

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2.3 billion people living without access to improved sanitation.

# data[].attributes.body
1 in 9 people have access to clean water.

# data[].attributes.body
There are 844 million people that don’t have access to safe water.

# data[].attributes.body
1.1 billion are without clean water.

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nowadays.org
Bottled water is treated water that once was rain.

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Combined, UK aid flows to water and sanitation make of 2% of the money donated, but most goes to water.
https://www.theguardian.com/global-development-professionals-network/2015/jul/01/global-access-clean-water-sanitation-mapped

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Only 3% of are water is fresh which means the other 97% is salt.

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http://thewaterproject.orgAccess to water
2- 1 in 9 people worldwide do not have access to safe and clean drinking water.

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Statistics can look stark. 1 in 3 people on the planet don't have a decent toilet. 1 in 9 don't have clean water close to home.

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Assess to clean water facts
1- 783 million people do not have access to clean and safe water world wide.
http://thewaterproject.org

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At least 1.8 billion people globally use a source of drinking water that is fecally contaminated

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While substantial progress has been made in increasing access to clean drinking water and sanitation, billions of people-mostly in rural areas-still lack these basic services. Worldwide, one in three people do not have access to safe drinking water, two out of five

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844 million people living without access to safe water

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the vast bulk of the water on Earth is regarded as saline or salt water, with an average salinity of 35‰ (or 3.5%, roughly equivalent to 34 grams of salts in 1 kg of seawater), though this varies slightly according to the amount of runoff received from surrounding land.

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Most water in Earth’s atmosphere and crust comes from saline seawater, while fresh water accounts for nearly 1% of the total. The vast bulk of the water on Earth is saline or salt water, with an average salinity of 35‰ (or 3.5%, roughly equivalent to 34 grams of salts in 1 kg of seawater), though this varies slightly according to the amount of runoff received from surrounding land. In all, water from oceans and marginal seas, saline groundwater and water from saline closed lakes amount to over 97% of the water on Earth, though no closed lake stores a globally significant amount of water. Saline groundwater is seldom considered except when evaluating water quality in arid regions.

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2.3 billion people are living without access to improved sanitation

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The power of water

Water connects every aspect of life. Access to safe water and sanitation can quickly turn problems into potential - empowering people with time for school and work, and contributing to improved health for women, children, and families around the world.

Today, 2.2 billion people - 1 in 4 - lack access to safe water and 3.5 billion people - 2 in 5 - lack access to a safe toilet. These are the people we empower.
Learn more about the global water crisis > Learn more about the global sanitation crisis >

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The Water Crisis: Shortage, Problems & Solutions | Water.org

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Explore the global water crisis, water shortage, and lack of water affecting billions. Learn how Water.org is tackling these water problems to transform lives.

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844 million people are living without access to clean water

# data[].attributes.attachment_link.readable_text
The power of water

Water connects every aspect of life. Access to safe water and sanitation can quickly turn problems into potential - empowering people with time for school and work, and contributing to improved health for women, children, and families around the world.

Today, 2.2 billion people - 1 in 4 - lack access to safe water and 3.5 billion people - 2 in 5 - lack access to a safe toilet. These are the people we empower.
Learn more about the global water crisis > Learn more about the global sanitation crisis >

# data[].attributes.attachment_link.title
The Water Crisis: Shortage, Problems & Solutions | Water.org

# data[].attributes.attachment_link.description
Explore the global water crisis, water shortage, and lack of water affecting billions. Learn how Water.org is tackling these water problems to transform lives.

# data[].attributes.body
6,000 children die everyday because they can’t prevent water born diseases.

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1/3 of all schools lack access to basic water and sanitation

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Since 1990, 2.6 billion people have gained access to an “improved” drinking water source, one that is designed to protect against contamination. But in 2015, 663 million people – one in 10 – still drank water from unprotected sources.

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http://all-about-water-filters.com/facts-about-water-contamination/http://all-about-water-filters.com/facts-about-water-contamination/ what is up?

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Around the world, 946 million people still go to the toilet outside. Eritrea is top of the list, with 77% of its population practising open defecation, a practice which can lead to the contamination of drinking water sources, and the spread of diseases such as cholera, diarrhoea, dysentry, hepatitis A and typhoid.

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Around the world, 946 million people still go to the toilet outside. Eritrea is top of the list, with 77% of its population practising open defecation, a practice which can lead to the contamination of drinking water sources, and the spread of diseases such as cholera, diarrhoea, dysentry, hepatitis A and typhoid. A huge global effort has been focused on reducing these numbers and new data from the WHO/Unicef Joint Monitoring Programme, which has measured the progress made on access to drinking water and sanitation since 1990, shows that there have been improvements in certain areas.

Eritrea's neighbour Ethiopia has achieved the largest decrease in the proportion of the population practising open defecation, from 92% in 1990 to 29% in 2015.

"Ethiopia has made a concerted effort to reduce open defecation rates over the past five years," says Tim Brewer, Wateraid's policy analyst on monitoring and accountability. "The government came up with a plan of action to get everyone in the country to stop practising open defecation, and made sure that donors contributing to the sanitation sector also followed the same plan. This hasn't been the case in Eritrea, where there has been conflict."

Brewer says the two countries are a good example that sanitation is not only down to environmental factors, but also to whether governments are willing to invest time and resources into making change happen.

Nine in 10 people who practice open defecation live in rural areas. But at the current rates of reduction it is estimated that open defecation will not be eliminated among the poorest in rural areas by 2030 - one of the targets of the sustainable development goals.

How many people around the world have access to improved sanitation facilities?

Among the world's city-dwellers, 82% of people now use an improved sanitation facility, defined as one that hygienically separates human waste from human contact. Only 51% of the global rural population has access to such facilities.

Globally it is estimated that 2.4 billion people still lack improved sanitation. They live primarily in Asia, sub-Saharan Africa, and Latin America and the Caribbean. In sub-Saharan Africa rapid population growth matched by insufficient progress means that numbers without access to sanitation have increased since 1990 to 17% of the population.

Which countries met the millennium development goal on sanitation?

It is not surprising, then, that the MDG target to extend access to improved sanitation from 54% of the global population in 2000 to 77% in 2015 has not been met. The target has been missed by almost 700 million people, and 57 countries made "no or limited" progress. Only four developing regions met the target: the Caucasus and central Asia, eastern Asia, northern Africa, and western Asia.

How many people around the world have access to an improved source of drinking water?

Better progress has been made on improving access to water: 91% of the global population uses an improved water source - one that protects water from external contamination - up from 76% in 1990. The number of people who lack access to an improved source of drinking water has fallen below 700 million people - to 663 million - for the first time.

As with sanitation, progress in rural areas trails behind urban areas: eight out of 10 people without improved drinking water sources live in rural areas. In sub-Saharan Africa, while 427 million people gained access during the MDG period, 319 million people still do not have access to clean water, the most of any region.

Which countries met the millennium development goal on water?

So why has there been such a disparity between achieving the MDGs on water and sanitation?

"They should be done hand-in-hand but historically all the effort has gone into water, and sanitation has taken a bit longer to be prioritised," says Brewer. "Combined, UK aid flows to water and sanitation make of 2% of the money donated, but most goes to water. It's also easier for a politician to stand in front of a water well for a photo than a latrine."

The overall picture is mixed, he adds. "It's good that the water goal has been met; millions of people have been reached with access to water and sanitation since 1990, and some countries have made great progress," says Brewer. "But in general, most of the people who have access to water don't have access at home. And is it safe? Is the water affordable and enough for their needs? And again, the poorest countries and the poorest people are being left behind; sub-Saharan African and South Asia are really behind. We need to focus on those people and contribute to making progress in those areas."
Join our community of development professionals and humanitarians. Follow @GuardianGDP on Twitter, and have your say on issues around water in development using #H2Oideas.

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Access to clean water and sanitation around the world - mapped

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Around the world, 946 million people still go to the toilet outside. Eritrea is top of the list, with 77% of its population practising open defecation, a practice which can lead to the contamination of drinking water sources, and the spread of diseases such as cholera, diarrhoea, dysentry, hepatitis A and typhoid.

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https://www.behance.net/gallery/15427191/H2O-Facts-Infographichttps://www.behance.net/gallery/15427191/H2O-Facts-Infographic

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About 780 million people lack access to clean water and fr water.

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11 Facts About Water Around the World | DoSomething.org | Volunteer for Social Change

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Water covers nearly 70 percent of the Earth's surface.

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The salts that are found in salt water, as well as brackish water (which is a mixture of salt and fresh water), are more diverse than the salt most of us have on our dining room table.

Read more:  Difference Between Salt Water and Fresh Water | Difference Between http://www.differencebetween.net/science/nature/difference-between-salt-water-and-fresh-water/#ixzz57gSBZxCg

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780 billion people don’t have access to clean water.

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Salinity, or the density of salt, is much higher in salt water, but fresh water is not completely devoid of salt.

Read more:  Difference Between Salt Water and Fresh Water | Difference Between http://www.differencebetween.net/science/nature/difference-between-salt-water-and-fresh-water/#ixzz57gRm0vfM

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https://www.epa.gov
Water distribution systems mostly consist of pipes, storage facilities, and components that convey drinking water.

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http://images.slideplayer.com/14/4196454/slides/slide_22.jpg

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http://blogs.worldbank.org/arabvoices/numbers-facts-about-water-crisis-arab-worldhttp://blogs.worldbank.org/arabvoices/numbers-facts-about-water-crisis-arab-world

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Fresh water makes up only about 1% of all the Earths water bodies.
http://www.differencebetween.net/science/nature/difference-between-salt-water-and-fresh-water/

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Freshwater vs saltwater fact

1- Only 3 percent of the water on the earths surface is fresh and the other 97 percent is saltwater so the distribution is uneven. http://e-ducation.psu.edu

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In 2010 the United States alone used about 275 billion gallons of surface water per day!
https://water.usgs.gov/edu/earthhowmuch.html