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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) 27,000 feet.
(b) 18,000 feet.
(c) 22,000 feet.
(d) 14,000 feet.

2. Our universe is at least how many light-years wide?
(a) 50 million trillions.
(b) 5 trillion.
(c) 100 billion.
(d) 350 trillion.

3. What followed the last supervolcanic eruption on Earth in the region that is now northern Sumatra?
(a) A two-year series of tidal waves.
(b) A reversal of the magnetic poles.
(c) Twenty years of intense earthquakes.
(d) A six-year volcanic winter.

4. How many chromosomes are there inside a human cell's nucleus?
(a) 32.
(b) 46.
(c) 21.
(d) 15.

5. Approximately how many bacteria live on a square centimeter of human skin?
(a) 7,500.
(b) 350.
(c) 100,000.
(d) 4,000,000.

Short Answer Questions

1. What massive bone belonging to a dinosaur was found in New Jersey in 1789?

2. What is the name of the Navy-funded mini submarine often used in undersea explorations?

3. The fact that Pluto has a moon was not discovered until:

4. Which of the following is not a layer of Earth?

5. Tired of climbing hills to study clouds, C. T. R. Wilson invented what?

(see the answer key)

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