In the areas of most rapid subduction, the down-going slab may remain rigid enough to spawn large earthquakes to depths of 7,000 km.
Answer the following statement true (T) or false (F)
False
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Which of the following is a biodegradable pollutant?
a. mercury b. plastic c. arsenic d. glass e. crude oil
Suppose that the concentration of DDT in a lake is 0.0000003 ppm (parts per million) and the concentration of DDT in the tissues of an osprey (a fish-eating bird) is 25 ppm. This is an example of ________
A) biodegradation B) biotruncation C) biomagnification D) bioreduction E) bioremediation
Rocks can contain some organic material but minerals cannot
a. True b. False Indicate whether the statement is true or false
Figure 23.16
What U.S. expenditures in the right hand part of the figure could be reduced, and the savings used to help solve problems in the left column?
What will be an ideal response?