In contrast to a generator, a motor is a
A. rotational counterpart to a generator.
B. generator in reverse.
C. means of harnessing magnetic induction.
D. all the above
Answer: B
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An example of mutualism would be
A) a bird that eats ticks from a zebra's skin. B) Spanish moss that hangs from a live oak tree. C) the bacteria that causes pneumonia. D) the needles on a cactus.
Name the four types of nonrenewable sources of energy, and without repeating, provide one advantage and one disadvantage to each.
What will be an ideal response?
A policy is approved that requires a company near a large city to keep its smokestack pollution to new lower levels, costing the company $2 million in additional equipment (which will last at least 10 years) and $100,000 a year in additional labor
Lowering the air pollutants in the region is expected to save $4 million in medical expenses in the region over the next 10 years. Which of the following can be inferred from this information? A) The company will save approximately $1 million over the next 10 years by implementing the new equipment. B) The company appears to lose money because of the policy, but it may decide to pass the costs along to consumers. C) Taxpayers will save approximately $1 million if the company implements the new equipment. D) The cost of the new equipment outweighs the benefit of its implementation.
As a tsunami enters a bay or fjord, wave height ____
a. ?increases because the water depth deepens b. ?increases because water is warmer c. ?decreases because the water depth decreases near shore d. ?increases because the wave is forced into a narrower space e. ?decreases only if bay water is shallower, increases if it is deeper