Biology

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Across
  1. 4. many animals live underground
  2. 5. most of the ground is frozen
  3. 6. Lowest point in the ocean
  4. 10. where most of the Earth's oxygen in produced
  5. 11. warm temperature and large amounts of rainfall
  6. 12. hot summers and cold winters
Down
  1. 1. tall grasses with scattered trees and shrubs
  2. 2. many animals migrate during winter
  3. 3. between high and low tide
  4. 7. plants store water
  5. 8. ocean shelf dropoff
  6. 9. mammals have large fur coats