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This quiz consists of 5 multiple choice and 5 short answer questions through Chapters 16-20.

Multiple Choice Questions

1. How many watts per square food does overhead sunlight approximately deliver to the ground?
(a) 50.
(b) 200.
(c) 75.
(d) 100.

2. How fast does a person falling accelerate from 0 to 66 miles per hour?
(a) 9 seconds.
(b) 10 seconds.
(c) 3 seconds.
(d) 11 seconds.

3. When did China end nuclear bomb tests?
(a) 1963.
(b) 1988.
(c) 1990.
(d) 1974.

4. In 2008, how much of the electricity generated in the United States came from nuclear power plants?
(a) 20%.
(b) 25%.
(c) 15%.
(d) 30%.

5. How much in 2008 were "triple junction" (82) solar cells?
(a) About $65 per square foot.
(b) $75 per square foot.
(c) $100 per square foot.
(d) Around $50 per square foot.

Short Answer Questions

1. How much of a half-life does carbon-14 have?

2. In Chapter 13, where was there a prototype nuclear waste facility?

3. How many astronauts were killed in the space shuttle Columbia explosion?

4. How much did it cost to launch a pound of anything into orbit in 2008?

5. How far is the moon from the Earth?

(see the answer key)

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