Man's pollution of public water sources includes
A) pesticides.
B) fertilizers.
C) carcinogenic chemicals.
D) radioactive materials.
E) all of these.
Correct Answer:
Verified
Q21: Atmospheric carbon dioxide levels _.
A)drop in
Q66: For every million liters of water in
Q68: Plastic bags may still be intact after
A)
Q69: Approximately how much of the total U.S.
Q70: Deforestation results in
A) increased air temperatures.
B) decreased
Q72: A benefit of global warming includes
A) farming
Q73: At present rates of clearing and degradation,
Q74: What percentage of the world's tropical forests
Q75: How many humans do not have enough
Q76: Forests serve to
A) hold water.
B) control soil
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