Key Facts About The Earth
| Education : Physics We all learn about the planets and the solar system. Here are some key facts about our own planet Earth: - atmosphere composed mainly of nitrogen and oxygen - three quarters of the surface covered in water - a satellite of the Sun - orbits the Sun at an average distance of 148 million kilometres - the above is known as 1 AU : Astronomical Unit - length of orbit: 365.25 days
More The Earth adviceTHAT IS VERY INTERESTING FACTS ABOUT EARHT AND I WOULD REALLY LIKE TO LEARN MORE
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