PT147.S1.Q10 > Question

SECTION 1 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 2 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7

PASSAGE 2

Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14

PASSAGE 3

Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22

PASSAGE 4

Question 23 Question 24 Question 25 Question 26 Question 27

SECTION 3 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6

PASSAGE 2

Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13

PASSAGE 3

Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21

PASSAGE 4

Question 22 Question 23 Question 24 Question 25 Question 26 Question 27

SECTION 4 · lr

The author concludes that if more of Earth’s surface area is covered with snow and ice, the global atmosphere will probably become cooler. This is supported by the observations that snow and ice reflect more sunlight into space than ocean or land, and the atmosphere becomes cooler when more sunlight is reflected into space.

The author assumes that increased snow and ice coverage on Earth will not have other effects that counteract the cooling caused by greater sunlight reflection.

This is irrelevant. The author is only concerned with the effect that more snow and ice cover on Earth would have on the global atmosphere; it doesn’t matter where that snow comes from.

Without more information about these factors, we don’t know whether and how they would affect the global atmospheric temperature if there was more snow and ice coverage, so this is irrelevant.

This strengthens by providing an additional mechanism by which higher snow and ice cover on Earth would cool down the global atmosphere—that is, by reducing the area of atmosphere-warming ocean water and land.

This is irrelevant, since it doesn’t provide any additional information about the effect of snow and ice on the global atmospheric temperature.

The argument only relies on the claim that snow and ice reflect more sunlight than land of any kind does, so comparing the reflectiveness of different types of land doesn’t make much difference—it’s just irrelevant.

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