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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 4 "Surface Waters and Underground Seas".

Multiple Choice Questions

1. Because animals are affected by chemicals, scientists are having a hard time finding uncontaminated animals to serve as _________ in experiments.
(a) Controls
(b) Helpers
(c) Examples
(d) Subjects

2. There is a disagreement among scientists about how much _______ can be safely stored in the body.
(a) DDT
(b) Arsenic
(c) Water
(d) Fat

3. Because synthetic pesticides are ______, they can easily poison intended and unintended targets.
(a) Dangerous
(b) Widespread
(c) Lethal
(d) Organic

4. Life is able to adapt to environmental change over _____________, according to Carson.
(a) Millennia
(b) A decade
(c) A year
(d) A few months

5. What is the toxin which is released through nuclear explosion?
(a) Radiation
(b) Arsenic
(c) Soot
(d) Gamma rays

Short Answer Questions

1. For almost every human being on the planet, synthetic pesticides are present in _______ and probably in bodily tissues from the beginning.

2. Much of the world's water is polluted by ________ from many sources.

3. What happens to the people in the beginning description which puzzles doctors?

4. Attempts to control a particular ________ in Clear Lake, California resulted in massive bird death.

5. Every human being now has contact with _________ every moment of his life - even from conception.

(see the answer key)

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