The sediments that make up the Ganges river delta in India are often toxic because they
A. Are highly acidic due to acid rain
B. Run through toxic soils
C. Dissolve naturally-occurring sulfur dioxide
D. Originate in coastal industrial areas
E. Have concentrations of naturally occurring arsenic
Answer: E
You might also like to view...
All of the following are sustainable development goals agreed to by member countries of the United Nations EXCEPT
A. provide productive employment for all. B. eliminate war. C. end poverty. D. sustainably use land and ocean resources.
Methyl mercury is a neurotoxin most likely to be consumed when you
A) eat contaminated produce. B) drink water polluted by sulfur and nitrogen oxides. C) eat fish in which the toxin bioaccumulates. D) breathe air contaminated by photochemical smog.
A layer of subsurface rock or sediment that stores and transmits water is a(n):
a. aquiclude. b. aquifer. c. geyser. d. water table. e. spring.
The cynodonts were the direct ancestors of early mammals. Indicate whether the statement is true or false