An example of an organism that might be part of the infauna is a ________
A) bull kelp
B) crinoid
C) lug worm
D) shark
E) tuna
C
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Which produces more energy, the fissioning of a single uranium nucleus or the fusing of a pair of deuterium nuclei? Why?
A. Fissioning a single uranium nucleus produces more energy since its mass is much greater than that of a pair of deuterium nuclei. B. Both the fissioning of a single uranium nucleus and the fusing of a pair of deuterium nuclei produce the same amount of energy since the resulting products are the same. C. Fusing a pair of deuterium nuclei produces more energy because, unlike fission, there is no radioactive waste product. D. Neither the fissioning of a single uranium nucleus nor the fusing of a pair of deuterium nuclei produces any net amount of energy. On the contrary, both processes require more energy than they produce.
In a cloud composed of water droplets and ice crystals, the saturation vapor pressure is greater over the droplets than over the ice
a. True b. False
What percentage of evaporation occurs over oceans?
A) 14 B) 20 C) 78 D) 86 E) 97
Changes in incoming solar radiation and in the composition of the atmosphere are two examples of ____ causes of climate change
a. artificial b. intrinsic c. extrinsic d. internal e. external