Chapter 10

Question 1

Venus Express is mapping what feature(s) of Venus?

Answer 1

temperatures of the surface and various layers of the atmosphere

Question 2

Because of its slow rotation period, Venus:

Answer 2

presents the same side to Earth at closest approach

Question 3

Venus is only a little bit (5%) smaller than Earth, and its density is only slightly less than Earth’s. Therefore, its mass is:

Answer 3

just a little bit less than Earth’s

Question 4

Why is Mars red?

Answer 4

the iron in the surface rocks have been oxidized over time

Question 5

Which statement is true of Venus’ surface?

Answer 5

there are two continent sized uplands

Question 6

The most striking valley in the solar system is:

Answer 6

valles marineris on mars

Question 7

What is the composition of the clouds of Venus?

Answer 7

sulfur and sulfuric acid droplets

Question 8

The orbiter that gave us the most detailed maps of Venus’ surface to date was:

Answer 8

Magellan

Question 9

Which of the following contributes to Venus beign so hot?

Answer 9

All of the above are factors

Question 10

The absence of a magnetic field on Venus probably stems from its:

Answer 10

slow rotation

Question 11

What is the main constituent of the atmosphere of Venus?

Answer 11

carbon dioxide

Question 12

Volcanic activity on Venus is thought to be:

Answer 12

less frequent, but more violent than volcanic activity on Earth

Question 13

Venus’ full phase occurs when Venus is at:

Answer 13

superior conjuction

Question 14

What causes the changing dark and light features visible on the Martian surface from Earth?

Answer 14

highly cratered and eroded areas that are frequently covered and uncovered by dust

Question 15

The difference between the Grand Canyon and the Valles Marineris is:

Answer 15

All of the above