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The Sun is a star found at the center of the Solar System.

It makes up around 99.86% of the Solar System’s mass.

At around 1,392,000 kilometres (865,000 miles) wide, the Sun’s diameter is about 110 times wider than Earth’s.

Around 74% of the Sun’s mass is made up of hydrogen. Helium makes up around 24% while heavier elements such as oxygen, carbon, iron and neon make up the remaining percentage.

Light from the Sun reaches Earth in around 8 minutes.

The Sun’s surface temperature is around 5500 degrees Celsius (9941 degrees Fahrenheit), so pack plenty of sunscreen if you plan on visiting (remembering that the average distance from the Sun to the Earth is around 150 million kilometers).

The Sun’s core is around 13600000 degrees Celsius!

The Sun generates huge amounts of energy by combining hydrogen nuclei into helium. This process is called nuclear fusion.

Because of the Sun’s huge influence on Earth, many early cultures saw the Sun as a deity or god. For example, Ancient Egyptians had a sun god called Ra while in Aztec mythology there is a sun god named Tonatiuh.

The Sun produces a solar wind which contains charged particles such as electrons and protons. They escape the Sun’s intense gravity because of their high kinetic energy and the high temperature of the Sun’s corona (a type of plasma atmosphere that extends into space).

Planets with strong magnetic fields such as Earth manage to deflect most of these charged particles as they approach.

A solar eclipse occurs when the Moon is between the Sun and the Earth.

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Bio fuels are classified into three categories which are first generation, second generation and third generation.

First generation fuels are also known as convention fuels. They are made from things like sugar, vegetable oil etc.

Second generation fuels can be produced from sustainable feedstock.

Third generation bio fuels are derived from algae. Although it is not a traditional category but some people refer to it.

Biodiesel can be produced from everything including vegetable oil, coffee grounds, and exotic plants like Jatropha etc.

It is a safer fuel option as it has a higher ignition point as compared to other types of fuels.

A Biofuel can exist in all three states of matter including solid, liquid and gas form.

the diesel engine was originally designed to run on vegetable oil. Its inventor Rudolf Diesel created a diesel engine running on peanut oil.

Gasoline and diesel are ancient biofuels but known as fossil fuels because they are made from decomposed plants and animals.

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◉Wind mills are being used since 2000 B.C. They were first developed in Persia and China.
◉A collection of wind turbines in the same location is known as a wind farm.

◉Wind farms are generally constructed in off shore locations as winds are steadier and stronger in those locations.

◉Most of the wind turbines have 3 blades that can reach up to a speed of 200 miles per hour.

◉The largest wind farm in the United States is the Shepherds Flat Wind Farm in Oregon.

◉Modern wind turbines are complicated machines. One wind turbine can have as many as 8,000 different components.

◉A single wind turbine can produce enough electricity to power around 600 homes.

◉Approximately 98.7% wind turbines are installed on private land.

◉Wind energy can be an alternative to fossil fuels.

◉The largest wind turbine in the world is located in Hawaii, United States

◉A wind turbine can also be installed on floating structures and they can send the generated electricity back to land with the help of undersea cables.

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◉ It pollutes the air
◉ kinda cheap
◉Bad for air
◉it is a state of energy
◉two different types of gas one is liquid and the other one is a type of air
◉under normal conditions nitrogen is a colorless odorless and tasteless gas
◉gases are mostly invisible and have no fixed shape
◉gases can also be classified based on if they are natural or artificial

◉theres also artifical gas to cause reactions

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◉Different types of coal contain different amounts of carbon
◉Coal is cheap
◉Coal is bad for the environment
◉Coal is used ALOT so it is destorying the earth
◉Coal starts off as plant matter at the bottom of water
◉mining coal has a bad effect on humans
◉coal has been first used in the 1880s
◉coal is the most used thing on earth
◉china produces the most coal
◉coal is made with nitrogen