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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. The first eruption of Yellowstone took place how many years ago?
(a) 74 thousand.
(b) 630 thousand.
(c) 19.7 billion.
(d) 16.5 million.

2. While he worked at General Motors Research Corporation in 1921, engineer Thomas Midgley, Jr. developed what dangerous gasoline additive?
(a) Isopropyl alcohol.
(b) Combustion catalyst.
(c) Hydrochloric acid.
(d) Tetraethyl lead.

3. What are eukarya?
(a) Organisms with nucleated cells.
(b) Salt-tolerant single-celled organisms.
(c) Carbon-trapping rocks.
(d) Bacteria that live on clouds.

4. When French physicist Henri Becquerel accidentally left a packet of uranium salts on a photographic plate, what happened?
(a) The plate became magnetic.
(b) The salt crystals melted into the plate.
(c) An emission from the salts ruined the plate.
(d) The plate rusted.

5. Compared to at sea level, oxygen at a few thousand feet above sea level is:
(a) More plentiful.
(b) Purer.
(c) Heavier.
(d) Thinner.

Short Answer Questions

1. Which of the following is not a major geological era?

2. What was the HMS Beagle, and how was it related to Charles Darwin?

3. In 1971, Mike Voorhies discovered an amazing fossil bed in Nebraska full of skeletons of prehistoric animals killed 12 millions years ago. How did they die?

4. In what year did Charles Darwin publish his famous book on natural selection called "On The Origin Of Species"?

5. When was Pluto discovered?

(see the answer key)

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