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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) 200.
(b) 100.
(c) 75.
(d) 50.

2. In Chapter 15, how long would some rides at amusement parks allow riders to fall?
(a) 125 feet.
(b) 145 feet.
(c) 50 feet.
(d) 100 feet.

3. In fallout from a nuclear bomb, what material is most likely to cause the most human deaths?
(a) Phosphorus-32.
(b) Polonium-215.
(c) Strontium-90.
(d) Cesium-137.

4. When did Stanley Pons and Martin Fleischmann mistakenly believe they had achieved cold fusion?
(a) 1994.
(b) 1989.
(c) 1991.
(d) 1986.

5. In a pebble bed reactor, how deep is the bed of pebbles where the uranium is placed?
(a) 4 inches.
(b) 2 1/2 inches.
(c) 1 1/2 inches.
(d) 3 inches.

Short Answer Questions

1. How many watts do humans emit?

2. In 2008, how much of the electricity generated in the United States came from nuclear power plants?

3. When was there a medieval warm period?

4. In the last century, how much has the cardbon dioxide level risen?

5. In the Manhattan Project, how much uranium did scientists believe was needed for a critical mass?

(see the answer key)

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