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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. When did the U.S. and Russia sign a treaty where they promised to reduce their stockpile of nuclear weapons to less than 6,000 each?
(a) 1992.
(b) 1996.
(c) 1998.
(d) 1991.

2. If you weigh 150 pounds on Earth, how much will you weigh on Jupiter?
(a) About 300 pounds.
(b) 525 pounds.
(c) 475 pounds.
(d) Nearly 400 pounds.

3. 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.

4. How many astronauts were killed in the space shuttle Columbia explosion?
(a) 8.
(b) 5.
(c) 6.
(d) 7.

5. How how long could the lasers mentioned in Chapter 14 deliver a power of 500 trillion watts?
(a) 6 nanoseconds.
(b) 4 nanoseconds.
(c) 5 nanoseconds.
(d) 1 nanosecond.

Short Answer Questions

1. When was there a medieval warm period?

2. When were high sea surface temperatures in the Caribbean detected by infrared satellites in Chapter 18?

3. How much of the atmosphere is made up of carbon dioxide?

4. At 100 miles altitude, what percent is the gravity from what it is on the surface?

5. In a pebble bed reactor, how deep is the bed of pebbles where the uranium is placed?

Short Essay Questions

1. In Chapter 18, what could the author see with night vision binoculars?

2. At the time the book was written, what prototype of a nuclear waste facility was developed by the U.S. government?

3. What theory did Milutin Milankovic use to explain the cyclic pattern of the ice ages?

4. What was learned about the climate of the past from glaciers covering Greenland?

5. What are the GRACE satellites, and what are some things that they have measured?

6. In Chapter 15, what does the author believe is the most efficient way to travel to space?

7. What happened to the space shuttle Columbia, and why does the author think what happened should not be a suprise?

8. What does Muller say about the safety of a space shuttle?

9. What was the Little Ice Age?

10. Why is it not necessary to enrich the uranium in a nucelar reactor, and what types of moderators can be used?

(see the answer keys)

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