AY 101-004                                                      Fall 2007
                                 QUIZ #5

Answer each of the following on a computer-gradeable answer sheet. Be
sure to fill in your name and student number (and blacken their circles as 
well). Write your seat number on a corner of the answer sheet.

1. The greenhouse effect happens because
   A) OUR ATMOSPHERE TRANSMITS VISIBLE LIGHT AND ABSORBS INFRARED RADIATION.
   b) our atmosphere transmits infrared radiation and absorbs visible light.
   c) ozone absorbs ultraviolet light.
   d) like greenhouse glass, air layers prevent different levels from mixing.

2. If the surface of a rocky world has few impact craters, this suggests that
   A) OTHER PROCESSES ARE WIPING OUT CRATERS FASTER THAN THEY FORM.
   b) its surface is very porous and deep.
   c) it must have a thick atmosphere.
   d) the planet has only recently arrived in the solar system.

3. Our most detailed information in the interior of the Earth comes from
   a) material found in deep mines.
   b) its density as inferred from the Moon's orbit.
   c) the propagation of cosmic X-rays through it.
   D) ANALYSIS OF THE SHOCK WAVES FROM EARTHQUAKES.

4. Plate tectonics on Earth entails
   A) ITS CRUST BEING MADE OF A NUMBER OF LARGE SOLID BUT MOVING PIECES.
   b) blocks of crustal rock rising and falling.
   c) new continents appearing from ocean crust.
   d) movement of continents during ice ages as glacial "plates" appear.

5. The huge difference in surface conditions between Venus and Earth is
   A) CAUSED BY A GREAT DIFFERENCE IN STRENGTH OF THE GREENHOUSE EFFECT.
   b) a lack of volcanic activity building up landforms on Venus.
   c) Venus not having a big moon (or any moon, for that matter).
   d) the high density of water vapor in Venus' cloud layers.

6. The energy to drive weather patterns on Earth comes from
   a) changes in the strength of the greenhouse effect.
   B) DIFFERENCES IN SOLAR HEATING ON VARIOUS PARTS OF ITS SURFACE.
   c) the Earth's hot core.
   d) a gradual slowdown of the Earth's rotation.

7. The Apollo project was driven, most immediately, by
   a) the drive to understand the Moon's formation.
   b) the political imperative of claiming extraterrestrial territory.
   c) a cultural drive to explore new frontiers.
   D) THE POLITICAL AND TECHNOLOGICAL RIVALRIES OF THE COLD WAR.

8. A concentration of ozone at high altitudes in our atmosphere
   a) traps heat.
   B) ABSORBS ULTRAVIOLET RADIATION.
   c) is produced by the Earth's magnetic field.
   d) reflects radio waves back to the surface.

9. Other things being equal, we do _not_ expect larger planets to have
   a) hotter cores.
   b) more massive atmospheres.
   c) more volcanic activity.
   D) MORE IMPACT CRATERS.

10. The great puzzle unveiled by the exploration of Mars has been
   a) how water remains in channels at such low temperatures.
   B) WHY THERE ARE SURFACE FEATURES MADE BY WATER ON SUCH A COLD AND DRY WORLD.
   c) how its tiny moons can have such pronounced tidal effects.
   d) why it shows no impact craters while orbiting near the asteroid belt.