All of the following are causes of earthquake activity except
A. human activity.
B. tectonic activity.
C. sunspot activity.
D. volcanic activity.
Answer: C
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List some of the ways that pollutants are removed from the atmosphere. Does this occur quickly or slowly?
What will be an ideal response?
Since semi-deserts contain a lot of short grasses, they are also referred to as ________
Fill in the blank(s) with the appropriate word(s).
Which of the following are used by individual farmers to generate biogas for their own use?
A) Sugar, water, and anaerobic bacteria B) Cornstalks, ethanol, and aerobic bacteria C) Manure, water, and anaerobic bacteria D) Manure, water, and aerobic bacteria
Explain the processes currently responsible for worldwide sea level rise. How will these changes in sea level affect coastal nations?
What will be an ideal response?