ESCI 111 Quiz 21 flashcards |

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The climate system involves the exchanges of energy and moisture that occur among the ________ spheres.

five

The amount of radiation reflected by a surface is termed its ________.

albedo

Tree rings can be used ________.

A and B

Fifty percent of Earth's atmosphere is found below an altitude of ________.

5.6 km

As you ascend in elevation within the troposphere, the air temperature decreases ________.

6.5 ยบC/km

A surface's ________ is the amount of total radiation that it reflects.

albedo

If Earth's atmosphere contained no greenhouse gases, the average surface temperature would be ________.

lower

Eccentricity, obliquity, and precession are considered to be causes of ________ climate change.

natural

Explosive volcanic eruptions can act to ________ global temperatures.

lower

A general term for particulate matter found in the atmosphere is ________.

aerosols

Some scientists believe that these huge magnetic storms are responsible for variations in temperature and precipitation.

sunspots

Burning which of the following materials contributes carbon dioxide to Earth's atmosphere?

A, B, and C

The increase in global temperature during the twentieth century was approximately ________.

0.8ยฐC

Methane (CH4), nitrous oxide (N2O), and chlorofluorocarbons (CFCs) are considered ________ (greenhouse) gases.

trace

Global warming is likely to have a greater adverse effect on ________ regions.

polar

Sea level has risen between ________ over the last 100 years.

10 and 23 cm

Melting of permafrost will release ________ as a result of decomposing vegetation.

carbon dioxide and methane

When atmospheric CO2 dissolves in seawater, it forms ________.

carbonic acid

Increased levels of atmospheric CO2 will ultimately ________ the pH of global oceans.

lower

Ozone is concentrated in the ________.

stratosphere

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