Which of the following characteristics of Earth are not shared by many other planets?
A. It generates enough heat to allow plate tectonics to operate.
B. Abundant water exists on the surface in liquid, vapor, and solid phases.
C. It contains abundant life.
D. Moving water and ice currently erode the land and deposit sediment.
E. All of these choices are correct.
Answer: E
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Acid deposition can affect forests by
a. Leaching out essential plant nutrients b. Diminishing the supply of Oxygen available to the tree c. Releasing ions that are toxic to the trees d. A and B are correct e. A and C are correct
One disadvantage of beach nourishment as compared to hard stabilization is ________.
A) beach nourishment is permanent B) hard stabilization may increase erosion C) beach nourishment is expensive D) hard stabilization makes the coast more scenic for recreation
Which of the following engineering techniques can help to prevent mass movements?
a. Removing subsurface water b. Retaining walls and rock bolts c. both a and b d. none of the above
The broad circulatory patterns of the major surface ocean currents are called:
a. streamlines. b. gyres. c. eddies. d. Rossby waves.