Explore Our Solar System

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Questions and Answers

Which planet in our solar system was believed to be the only one with liquid water until recently?

  • Earth (correct)
  • Mars
  • Venus
  • Mercury

What are comets made of?

  • Sand, ice, and carbon dioxide (correct)
  • Rock and metal
  • Water and oxygen
  • Gas and dust

Which planet in our solar system has no solid surface?

  • Saturn
  • Uranus
  • Neptune (correct)
  • Jupiter

How long would it take to fly a plane to Pluto?

<p>More than 800 years (B)</p> Signup and view all the answers

What is space junk?

<p>Human-made objects orbiting Earth (D)</p> Signup and view all the answers

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