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Simple Things to Know About Earth

Earth formed approximately 4.54 billion years ago, and life appeared on its surface within its first billion years. The planet is home to millions of species of life, including humans.Earth is a terrestrial planet, meaning that it is a rocky body, rather than a gas giant like Jupiter.The Earth provides liquid water-an environment where complex organic molecules can assemble and interact, and sufficient energy to sustain metabolism.

Simple Things to Know About Earth
  • 1 of 7:

    What is the name of the largest ocean on earth?

  • A) Atlantic Ocean
  • B) Pacific Ocean
  • C) Indian Ocean
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