Which of the following is not an example of a disturbance in an ecosystem?

A. Shade
B. Flash flood
C. Fire
D. Drought


Answer: A

Environmental & Atmospheric Sciences

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Refraction causes a fish in water to appear

A. nearer the surface. B. deeper. C. neither deeper nor closer. D. none of the above

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In a wave of oscillation, an individual water molecule near the surface will move

A) counterclockwise in the Northern Hemisphere, clockwise in the Southern Hemisphere. B) in a smaller vertical circle than a water molecule submerged deeper in the wave. C) in a larger vertical circle than a water molecule submerged deeper in the wave. D) clockwise in the Northern Hemisphere, counterclockwise in the Southern Hemisphere.

Environmental & Atmospheric Sciences

During the past half century, global food production has ________ world population growth

A) surpassed by several orders of magnitude B) fallen to critical levels compared to C) fallen behind D) grown at a faster rate than E) stayed about even with

Environmental & Atmospheric Sciences

What is NOT true about the extraction of groundwater?

A. Mining groundwater outpaces accumulation. B. It is considered a finite resource. C. Mining groundwater often leads to subsidence. D. It is called fossil water. E. Mining groundwater will always be a resource.

Environmental & Atmospheric Sciences