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This quiz consists of 5 multiple choice and 5 short answer questions through Part 6, Chapter 29.

Multiple Choice Questions

1. What is the highest elevation that humans are able to live and survive on Earth continuously without special accommodations?
(a) 22,000 feet.
(b) 14,000 feet.
(c) 27,000 feet.
(d) 18,000 feet.

2. Pluto is the first planet to be discovered by an:
(a) Austrian.
(b) Australian.
(c) American.
(d) Argentine.

3. In Chapter 23, the author discusses the battles that go on in the plant world regarding:
(a) What to name plants.
(b) Funding for plant research.
(c) Using plants for medicinal purposes.
(d) Who owns plant patents.

4. When radiation was first discovered, it was sometimes added to:
(a) Gasoline and alcohol.
(b) Drinking water.
(c) Toothpastes and laxatives.
(d) Stews and casseroles.

5. Somewhere between three and two million years ago, how many hominid species co-existed before vanishing abruptly?
(a) Twelve.
(b) Six.
(c) Two.
(d) Nine.

Short Answer Questions

1. Scientists now believe that life began on Earth how long ago?

2. How do today's professional astronomers search for supernovae?

3. About how many stars are visible to the naked eye from Earth?

4. Species appear to exist, on average, how long?

5. Approximately 50 million years ago, Antarctica was:

(see the answer key)

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