Would you expect the heaviest snowfall to occur on an unusually cold night or a night when the temperature was just a little below freezing?
What will be an ideal response?
ANSWER: Large snowflakes are those that fall through moist air that is slightly above freezing. In this condition the snowflakes slowly melt as they descend. A thin film of water forms on the edge of the flakes, acting like glue when other snowflakes come in contact with it. In this way, several flakes can join to produce giant snowflakes often measuring several inches or more in diameter. When snowflakes fall through extremely cold air with a low moisture content, small, powdery flakes of dry snow accumulate on the ground.
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During a period when the earth's orbital tilt is at a minimum, which would probably not be true?
a. there should be less seasonal variation between summer and winter b. more snow would probably fall during the winter in polar regions c. there would be a lesser likelihood of glaciers at high latitudes d. there would be less seasonal variations at middle latitudes
Your text indicates that economic systems take natural capital and produce the following outputs. Which of these is considered to be a positive output?
A. depletion of nonrenewable resources B. heat C. pollution and waste D. degradation of renewable resources E. goods and services
The TIGER database is topology-based.
Answer the following statement true (T) or false (F)
Which state would you expect to have the most Histosols soil?
A) Alaska B) California C) Nevada D) Florida