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This quiz consists of 5 multiple choice and 5 short answer questions through Part 5, Chapter 25.

Multiple Choice Questions

1. Bacteria take nitrogen from the air and form it into what?
(a) Fluoride.
(b) Water.
(c) Amino acids.
(d) Nitric oxide.

2. Regarding species that have gone extinct, scientists generally:
(a) Do not know what killed off species.
(b) Blame the extinction on climate changes.
(c) Know exactly how species died.
(d) Attribute mass extinctions to volcanoes.

3. Scientists assumed stromatolites were extinct until they were discovered where in 1961?
(a) Armenia.
(b) Algeria.
(c) Argentina.
(d) Australia.

4. After noticing an unusual phenomenon with uranium salts and a photographic plate, Henri Becquerel asked one of his graduate students to investigate the matter. Who was this student?
(a) Louise Désirée Lorieux.
(b) Marie Curie.
(c) Wilhelm Conrad Röntgen.
(d) René Just Haüy.

5. Through the examples provided about Thomas Midgley's inventions, what is the author trying to say about science?
(a) Pursuing scientific avenues is always justified, regardless of outcome.
(b) Without science, we would still be living in caveman days in primitive dwellings.
(c) Science is the cause of all our modern ills.
(d) Science can better our lives but used unwisely it can be dangerous to the planet.

Short Answer Questions

1. Charles Darwin suggested that evolution was a process taking millions of years, which many met with skepticism because scientists:

2. Who was Robert Fitzroy?

3. While he worked at General Motors Research Corporation in 1921, engineer Thomas Midgley, Jr. developed what dangerous gasoline additive?

4. The troposphere is the layer of atmosphere:

5. What organization opposed geologist Clair Patterson and his campaign?

(see the answer key)

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