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This quiz consists of 5 multiple choice and 5 short answer questions through Part 5, Chapter 17.

Multiple Choice Questions

1. How deep is Earth's atmosphere?
(a) 120 miles.
(b) 5 miles.
(c) 30 miles.
(d) 800 miles.

2. Sir Isaac Newton wrote "Mathematical Principles of Natural Philosophy," which explains his laws of what?
(a) Quantum physics.
(b) Attraction.
(c) Motion and gravity.
(d) Electromagnetic interference.

3. What organization opposed geologist Clair Patterson and his campaign?
(a) Swimming Pool Safety Institute.
(b) American Academy of Pediatrics.
(c) American Dairy Association.
(d) American Petroleum Institute.

4. In addition to being a seventeenth-century astronomer, Christopher Wren designed:
(a) Eyeglasses.
(b) Clothes.
(c) Swords.
(d) Cathedrals.

5. Today, scientists know that radiation in high doses is:
(a) Tolerable.
(b) Toxic.
(c) Safe.
(d) Healthy.

Short Answer Questions

1. When radiation was first discovered, it was sometimes added to:

2. When French physicist Henri Becquerel accidentally left a packet of uranium salts on a photographic plate, what happened?

3. If Earth did not have an atmosphere, it would be what?

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?

5. The troposphere is the layer of atmosphere:

(see the answer key)

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