Which of the following terms refers to clouds that appear as bag-like sacks hanging from beneath other clouds?

A. pileus
B. mammatus
C. castellanus
D. lenticular


Answer: B

Environmental & Atmospheric Sciences

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The current urbanization experience of many developing countries is similar to the United States' ________ that occurred in the nineteenth and early twentieth centuries.

A. Rural-to-urban shift B. Demographic transformation C. Demographic transition D. Urban-to-rural shift E. Demographic rural shift

Environmental & Atmospheric Sciences

In Costa Rica, cutting down forests will almost immediately increase the cost of producing __________.

a. timber for building homes and factories b. fresh water c. wood pulp for the many paper factories in the region d. all of the listed choices

Environmental & Atmospheric Sciences

This pyramid shows the ratio of organisms, energy content, and biomass at different trophic levels. Suppose that a system has 5000 grasshoppers. How many hawks would be expected?

a. 5 b. 50 c. 500 d. 5000

Environmental & Atmospheric Sciences

  Figure 3.15 Generalized pyramid of energy flow showing the decrease in usable chemical energy available at each succeeding trophic level in a food chain or food web. ? Use the accompanying figure to answer the following five questions. ? Letter D, at the base of the pyramid given above, represents what group of organisms?

What will be an ideal response?

Environmental & Atmospheric Sciences