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The Earth and Its Conditions for Life

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  • What are seasons?
    fall/autumn, winter, spring, summer
  • Which layer or sphere is formed of all the water on the planet?
    the hydrosphere
  • What are the 4 layers or spheres?
    Atmosphere, biosphere, hydrosphere, and geosphere
  • TRUE or FALSE: having 'DAYS and NIGHTS' keeps the Earth's temperature mild
    TRUE
  • What is the hydrosphere?
    the layer that is formed of all the water on the planet
  • What is the atmosphere?
    the layer that contains oxygen and hydrogen; the layer that protects us from sun rays (solar radiation)
  • Is the Earth a SOLID, LIQUID, or SOFT planet?
    solid
  • TRUE or FALSE: the atmosphere is the gaseous layer (layer of gases) that surrounds the Earth
    TRUE
  • how many degrees Celsius does the Earth need?
    15
  • Which layer or sphere protects us from sun rays (solar radiation)?
    the atmosphere
  • TRUE or FALSE: the biosphere is made up of all the living things on Earth
    TRUE
  • What are the TWO GASES in our atmosphere?
    oxygen and carbon dioxide
  • Which layer or sphere is the Earth's solid part?
    the Geosphere
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