Pollution is best described as:
A) Adding substances or energy that harm the environment.
B) Changing the population growth of species.
C) The decrease in the quality of the environment as a result of natural events.
D) Substances or materials that are toxic to humans decreasing the quality of the human environment.
E) Can be broken down by bacteria.
Correct Answer:
Verified
Q2: Sludge is best defined as:
A)Raw sewage.
B)Semi-liquid material
Q3: People can contract hepatitis from eating raw
Q4: One of the following has been implicated
Q5: Accumulation of sludge on the bottom of
Q7: A persistent chemical is one that is:
A)Toxic.
B)Non-biodegradable.
C)A
Q8: The problem of hypoxic,or "dead" zones,in the
Q9: An anthropogenic impact is one caused by:
A)Physical
Q10: The most harmful oil spills in terms
Q11: After oil spills,what type of marine animals
Q52: Which of the following organisms are expected
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