Deck 6: Composition and Structure of the Atmosphere

Question 1

The ozone hole is located over ________.

A) the equator in the troposphere
B) the Arctic in the mesosphere
C) the Antarctic in the stratosphere
D) the warmest part of the Earth

Answer 1

C

Question 2

The amount of water vapor in the atmosphere varies between:

A) 0-4 percent
B) 5-10 percent
C) 10-20 percent
D) 20-25 percent

Answer 2

A

Question 3

In the lowest layer of the atmosphere, temperatures stop decreasing with height at the:

A) mesopause
B) tropopause
C) stratopause
D) ozone layer

Answer 3

B

Question 4

A major sink for atmospheric carbon dioxide are:

A) animals
B) plants
C) rocks
D) icefields
E) termites

Question 5

The Montreal Protocol of 1987 was an international agreement to ban _____.

A) chlorofluorocarbons
B) leaded gasoline
C) ozone
D) coal burning plants

Question 6

The ozone layer is important to life on Earth because the ozone layer _________.

A) absorbs harmful infrared radiation
B) absorbs harmful ultraviolet radiation
C) allows solar radiation to enter the atmosphere
D) is the main source of oxygen for animals

Question 7

Particles, such as fine-grained dust and aerosols, are important in the atmosphere since they play a role in:

A) blocking ultraviolet rays
B) absorbing excess carbon dioxide
C) cloud formation
D) scattering light in rainbows

Question 8

Carbon dioxide levels in the atmosphere:

A) have been increasing since the 1950s
B) have been decreasing since the 1950s
C) have been increasing until after 1998
D) have not changed in the last 600,000 years

Question 9

Which of the following is NOT true of the ozone hole?

A) The amount of ozone depletion has grown worse over the last few years.
B) Ozone depletion has led to an increase in skin cancer in some countries.
C) The amount of ozone depletion is greatest over the northern polar regions.
D) Ozone loss in the stratosphere is occurring in both Northern and Southern Hemispheres.

Question 10

Which of the following layers of the atmosphere show increasing temperatures with increasing heights?

A) troposphere and mesosphere
B) mesosphere and thermosphere
C) stratosphere and thermosphere
D) homosphere and ionosphere

Question 11

Blue skies of the atmosphere are created by scattering of sunlight by:

A) ozone
B) carbon dioxide
C) nitrogen oxides
D) aerosols

Question 12

The ozone hole is a physical hole where there is no ozone allowing solar radiation to reach the Earth's surface.