Under the superfund act,
a. toxic waste can enter the water system without concern.
b. most of the dangerous toxic dump sites in the u. s. have been cleaned up.
c. the epa may sue companies that dump hazardous waste illegally.
d. companies that cannot afford to clean up their hazardous wastes can have the government pay for the clean-up.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.