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Oxygen

Part of speech: Noun, Thing

Oxygen is required for life.


  • Most of the Earth's atmosphere is within 30 KM (about 19 miles) of the surface. - 29
  • At higher altitudes the atmosphere gets thinner and the air pressure is reduced. - 30
  • The Earth's Atmosphere ends at about 328,000 Feet = 62 miles = 100KM. - 31
  Key words: Atmosphere, Element, Gas, Oxygen  

  Frequently Asked Questions (FAQ's)  

Question: What is ozone?
  Answer: Ozone is a molecule that is composed of three oxygen atoms. - 258


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