Question 1

Completely dry air has a relative humidity of

Accepted Answer

A) 0. 
B) 1 percent. 
C) 50 percent. 
D) 100 percent. 
A) 0. 
B) 1 percent. 
C) 50 percent. 
D) 100 percent.

Question 2

If the earth's axis were less tilted than it is today, the difference between the average temperatures of winter and summer would

Accepted Answer

A) decrease. 
B) be unchanged. 
C) increase. 
D) Any of these choices could be correct, depending on the location. 
A) decrease. 
B) be unchanged. 
C) increase. 
D) Any of these choices could be correct, depending on the location.

Question 3

Clouds occur when moist air is cooled by

Accepted Answer

A) expansion when it rises. 
B) expansion when it falls. 
C) compression when it rises. 
D) compression when it falls. 
A) expansion when it rises. 
B) expansion when it falls. 
C) compression when it rises. 
D) compression when it falls.

Question 4

Everywhere north of the Arctic Circle

Accepted Answer

A) there is no land. 
B) there is ice but no liquid water. 
C) there is no sunlight all winter. 
D) there is no sunlight only at the winter solstice, which is usually December 22nd. 
A) there is no land. 
B) there is ice but no liquid water. 
C) there is no sunlight all winter. 
D) there is no sunlight only at the winter solstice, which is usually December 22nd.

Question 5

The process by which air heated by contact with a warm part of the earth's surface rises upward is called

Accepted Answer

A) the Coriolis effect. 
B) conduction. 
C) convection. 
D) insolation. 
A) the Coriolis effect. 
B) conduction. 
C) convection. 
D) insolation.

Question 6

Air near the equator averages higher temperatures than air near the poles because

Accepted Answer

A) polar air is cooled by the ice and snow on the ground. 
B) there is more carbon dioxide and water vapor in equatorial air to absorb infrared radiation from the earth. 
C) sunlight falls more nearly vertically at the equator than near the poles. 
D) the oceans near the equator are warmer than those near the poles. 
A) polar air is cooled by the ice and snow on the ground. 
B) there is more carbon dioxide and water vapor in equatorial air to absorb infrared radiation from the earth. 
C) sunlight falls more nearly vertically at the equator than near the poles. 
D) the oceans near the equator are warmer than those near the poles.

Question 7

Most of the world's freshwater is found

Accepted Answer

A) in lakes and rivers. 
B) in clouds. 
C) frozen in Greenland and Antarctica. 
D) in the oceans. 
A) in lakes and rivers. 
B) in clouds. 
C) frozen in Greenland and Antarctica. 
D) in the oceans.

Question 8

Tsunamis

Accepted Answer

A) are extremely rare. 
B) occur mainly in the Atlantic Ocean. 
C) are caused by undersea earthquakes. 
D) are caused by hurricanes. 
A) are extremely rare. 
B) occur mainly in the Atlantic Ocean. 
C) are caused by undersea earthquakes. 
D) are caused by hurricanes.

Question 9

Of the following, the gas that contributes most to global warming is

Accepted Answer

A) ozone. 
B) carbon monoxide. 
C) carbon dioxide. 
D) methane. 
A) ozone. 
B) carbon monoxide. 
C) carbon dioxide. 
D) methane.

Question 10

The term "greenhouse effect" refers to

Accepted Answer

A) condensation of water vapor to form dew. 
B) conversion of carbon dioxide to oxygen by green plants. 
C) heating of the atmosphere by direct solar radiation. 
D) heating of the atmosphere by radiation from the earth. 
A) condensation of water vapor to form dew. 
B) conversion of carbon dioxide to oxygen by green plants. 
C) heating of the atmosphere by direct solar radiation. 
D) heating of the atmosphere by radiation from the earth.

Question 11

Ice crystals

Accepted Answer

A) never occur in clouds. 
B) usually are found in low-altitude clouds. 
C) usually occur in high-altitude clouds. 
D) occur equally often in clouds at all altitudes. 
A) never occur in clouds. 
B) usually are found in low-altitude clouds. 
C) usually occur in high-altitude clouds. 
D) occur equally often in clouds at all altitudes.

Completely dry air has a relative humidity of

If the earth's axis were less tilted than it is today, the difference between the average temperatures of winter and summer would

Clouds occur when moist air is cooled by

Everywhere north of the Arctic Circle

The process by which air heated by contact with a warm part of the earth's surface rises upward is called

Air near the equator averages higher temperatures than air near the poles because

Most of the world's freshwater is found

Tsunamis

Of the following, the gas that contributes most to global warming is

The term "greenhouse effect" refers to

Ice crystals

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe

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Exam 14: Atmosphere and Hydrosphere

Completely dry air has a relative humidity of

If the earth's axis were less tilted than it is today, the difference between the average temperatures of winter and summer would

Clouds occur when moist air is cooled by

Everywhere north of the Arctic Circle

The process by which air heated by contact with a warm part of the earth's surface rises upward is called

Air near the equator averages higher temperatures than air near the poles because

Most of the world's freshwater is found

Tsunamis

Of the following, the gas that contributes most to global warming is

The term "greenhouse effect" refers to

Ice crystals

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Nucleus

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe

Filters