13:5513:55, 8 November 2017diffhist+157
User:Mareefa/TWA/Earth
Science shows that Earth formed around 4.5 billion years ago. The organisms that live on Earth have completely changed its air (atmosphere); this is called a biosphere. 71% of Earth's surface is covered in salt water oceans. Earth is the only place in the
13:4413:44, 8 November 2017diffhist+44
User:Mareefa/TWA/Earth
Earth is the only planet in the galaxy which is known to support life. Earth has many places that are suitable for humans to live; although, some areas of the planet can be dangerous for humans or uninhabitable.
13:0213:02, 8 November 2017diffhist+91 N
User:Mareefa
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