What pesticide has been primarily used to control mosquito populations?
A) mercury
B) DDT
C) lead
D) synthetic estrogens
E) PCB
B
You might also like to view...
On average, the atmosphere absorbs roughly this percentage of the solar radiation that reaches the top of the atmosphere:
A) 5 percent. B) 14 percent. C) 25 percent. D) 50 percent.
Which of the following is NOT one of the four most populous countries in the Latin American region?
a. Brazil b. Mexico c. Peru d. Argentina e. Columbia
Inuit people who live in the Arctic tundra have high levels of DDT in their bodies, but live and work far from areas of industrial pollution. They eat seals and fish; seals eat fish. Which mechanism accounts for the high concentrations of DDT?
A. biological magnification B. optical magnification C. drinking Groundwater D. absorption through skin
The causes of the sixth mass extinction include all of the following except ________
A) invasive species B) volcanic eruptions and meteorites C) habitat alteration and destruction D) global climate change