Protective structures used to control mass-wasting include all of the following except

A. tunnels.
B. terraces.
C. retaining walls.
D. a covering comprised of a heavy chain mesh.


Answer: B

Environmental & Atmospheric Sciences

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A 1-kg chunk of slime moving at 1 m/s collides and sticks to a 5-kg bowling ball initially at rest. The momentum of the combined ball and slime is

A. 0 kg?m/s. B. 5 kg?m/s. C. 1 kg?m/s. D. 2 kg?m/s.

Environmental & Atmospheric Sciences

Give three examples of limiting factors for populations of organisms in aquatic systems.

What will be an ideal response?

Environmental & Atmospheric Sciences

Which of the following does not belong?

A) Hadley Cell B) Tropical rain forest biome C) Oxisol D) Stable atmosphere

Environmental & Atmospheric Sciences

?Match the term with the correct description.

A. ?natural nutrient enrichment of a shallow lake, a coastal area at the mouth of a river, or a slow-moving stream B. ?human activities that increase the input of plant nutrients to a lake C. ?loss of oxygen in a section of a stream due to the breakdown of biodegradable wastes by bacteria D. ?massive volume of ocean water with a low dissolved oxygen content E. ?a lake low in nutrients with clear water

Environmental & Atmospheric Sciences