Pollution cleanup efforts can be ineffective because
a. They often transfer pollutants from one part of the environment to another.
b. Once pollutants are dispersed, it costs too much to reduce them to acceptable levels.
c. They can be overwhelmed by growth in population and consumption.
d. They often transfer pollutants from part of the environment to another, once they are dispersed it costs too much to reduce them to acceptable levels, and they can be overwhelmed by growth in population and consumption.
e. There are not enough people with the necessary technical training to deal with the problems.
D
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____________________are ridges or mounds of unsorted, unstratified debris deposited by a glacier along its margins
or at its terminus. Fill in the blank(s) with the appropriate word(s).
Biomagnification occurs most commonly in which organisms?
A. birds of prey B. predator fish C. carnivores D. All of these statements are correct E. None of these statements are correct
Photodissociation is most likely to involve radiation from this part of the electromagnetic spectrum
A) ultraviolet. B) infrared. C) visible. D) microwave. E) longwave.
characteristics that identify a species as a keystone species
What will be an ideal response?