You are in an area that is relatively hot. You bend down and notice that there are tracks in the soil that are very old. Since you know that this area is easily destroyed by human activity and the harsh climate slows recovery from human damage, you conclude that this biome is
A. Tundra
B. A tropical dry forest
C. A wetland
D. A desert
E. A grassland
Answer: D
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A(n) ____________________ soil forms where the parent material has weathered, whereas
____________________ soil develops from eroded material that was weathered at another location Fill in the blank(s) with the appropriate word(s).
What is the main difficulty in trying to eliminate chlorinated fluorocarbons from the atmosphere?
A. They are very stable and take a long time to decompose completely. B. They do not absorb ultraviolet radiation. C. They are too light and blow away. D. all of the above E. only a and b
Acid deposition is most likely to occur
A. where the soil is already acid. B. down wind of a coal fired power plant. C. in mountainous areas. D. in forested areas.
Which of the following occurs when a monosaccharide is converted to an amino sugar?
A) An amino group replaces an aldehyde carbonyl. B) An amino group replaces a ketone carbonyl. C) An amino group replaces a hydroxyl group. D) Any of the above, it depends on the identity of the monosaccharide.