Ozone in the stratosphere primarily forms over ____ and is transferred to ____ by stratospheric winds
A) the tropics; Australia
B) the tropics; the Antarctic
C) North America; the Antarctic
D) Europe; the Antarctic
B
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Examine the full-page photograph at the beginning of this chapter. The aerial view in eastern Washington shows natural hillslopes and farmland
The yellow areas are growing wheat. The remaining areas are covered in native grasses. Explain how the farming practices visible in the photograph are designed to minimize soil erosion. What will be an ideal response?
Average temperatures in Great Britain would be much colder if it were not for the:
a. East Greenland Current. b. Canary Current. c. North Atlantic Drift. d. Labrador Current.
Which of the following igneous rocks would be formed by the slowest cooling?
A. medium-grained granite B. volcanic glass C. coarse granite D. fine-grained granite E. There is not enough information to tell.
What does the term half-life describe?
A. time needed for half of the radioactive atoms in a substance to convert into energy. B. half the time needed for a radioactive substance to become safe. C. time needed for half the cells in an organism to turn cancerous from radiation damage. D. half the time needed for cells in a living organism to recover from radiation damage. E. time needed for half of the radioactive atoms in a substance to decay into stable isotopes.