Engineering problems in permafrost areas include:

a. frost heave
b. permafrost thaw
c. slope stability
d. all of the above


d

Environmental & Atmospheric Sciences

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Compare the different levels of protection versus use for the different categories of federal lands in the United States

What will be an ideal response?

Environmental & Atmospheric Sciences

Jupiter, Saturn, Uranus, and Neptune are surrounded by atmospheres of ________.

A. argon B. carbon dioxide C. oxygen D. hydrogen and helium E. nitrogen and krypton

Environmental & Atmospheric Sciences

In an agricultural region,

A. herbicides and pesticides are retained in the soil and do not present a water-pollution threat. B. spring planting and application of fertilizers and herbicides can result in concentration spikes of these chemicals in rivers, due to spring rains. C. crops generally use the fertilizer applied to enhance their growth very efficiently. D. the use of filter strips in riparian zones (areas adjacent to streams) has not been demonstrated to be effective in reducing nutrient loading of streams.

Environmental & Atmospheric Sciences

The __________ is one of Brazil's most affluent regions, and it has gained much wealth from agricultural activities.

Fill in the blank(s) with the appropriate word(s)

Environmental & Atmospheric Sciences