Engineering problems in permafrost areas include:
a. frost heave
b. permafrost thaw
c. slope stability
d. all of the above
d
You might also like to view...
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?
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
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.
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)