CH 4 Review-The Earth Speaks

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Across
  1. 1. this protects the earth from harmful radiation particles that are streaming through space
  2. 4. old-earth view of earth's history is called the ___ viewpoint
  3. 8. this planet's gravity is most responsible for keeping asteroids away from Earth
  4. 9. he introduced uniformitarianism to geology
  5. 12. scientists believe the earth's core is composed mostly of this
  6. 13. these people believe the earth's age is 6-7 thousand years
  7. 16. one way to conserve a nonrenewable resource while still using it is to ___ it for reuse
  8. 19. this layer of the earth is thinner under the oceans than under the continents
  9. 20. geologist collect data to model earth's interior from waves from these
  10. 21. the word geology literally means the study of the ___
Down
  1. 2. the earth's orbit is best described as an ___
  2. 3. the earth's crust is made up of large divisions known as ___
  3. 5. secular geologists believe the earth's age is 4.5___ years
  4. 6. our seasons are most directly cause by the earth's ___
  5. 7. of all the planets and moons, only the earth's atmosphere is ___
  6. 10. scientist theorize about what is inside the earth by studying these type of waves
  7. 11. shrimp is an example of a ____ natural resource
  8. 14. resources must be protected from ___
  9. 15. a resource manager who is concerned with sustainable yields work with a ____ resource
  10. 17. the Moho is found at the ___ of the crust
  11. 18. the least dangerous location in a large galaxy is the space between its ___