“All renewable resources are the same.” Do you agree with this statement? Explain why or why not.
What will be an ideal response?
Answers may vary, but the correct answer should be to disagree with this statement. All renewable resources are not the same because some require time to replenish themselves (fisheries, forests, animals, etc.), and others are infinitely available to us (wind, solar, and tidal forces, for example). In addition, living species reproduce at different rates and have differing degrees of population vulnerability. Some species are more vulnerable to overharvest than others.
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There are usually _____ animals in a class to be judged
a. two c. six b. four d. eight
When a Williams type exhaust brake is fully actuated, which of the following is true of the exhaust flow area through the brake?
A. zero flow B. minimal flow C. moderate flow D. maximum flow
What advantage is there to maintaining a negative pressure on the heat exchanger?
A) The negative pressure helps draw in return air from the house, increasing efficiency. B) Combustion air can only be drawn into the oil burner if a negative pressure is maintained. C) The vent will not work unless the heat exchanger is at a negative pressure. D) Safety; it ensures combustion products do not leak out into the air stream.
To speed up evacuation, you should use:
A) Large-diameter, long hoses. B) Small-diameter, long hoses. C) Small-diameter, short hoses. D) Large-diameter, short hoses.