Name: __________________________

1. green
   blue
   red


2. stays at the planet’s surface
   moves up to the atmosphere
moves up to the atmosphere
moves directly from the planet’s surface to space


3. is still in the planet system
   was lost to space


4. 1
   2
   4
   6


5. different
   the same


6. has
   does not have


7. increase
   remain the same
   decrease


8. 3.0
   4.3
   5.3
   7.2


9. 0
   1
   2
   3


10. less than
    equal to
    more than


11. almost all
    about half
    few


12. ocean
    hydrological cycle
    cryosphere
    land surface

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