7th grade, Weather and Climate, ch. 4

Regions that receive less than 25 cm of rain anually are called

The side of the mountain that receives most of the precipitation

Cholorine atoms in the stratosphere

What is the independent variable and where is it located?

GLOBAL WARMING is the trapping of energy from the sun by Earth's atmosphere

Increased carbon dioxide may cause global warming by

During an ice age, Earth's sea level

Summers are caused by

Permafrost and mosses, lichens, and wildflowers are common in the

The main factors that affect an area's TEMPERATURE are prevailing winds and mountains

What is the density of pure water?

Scientists assume an organism's ancestors required a climate SIMILAR TO present day climate

The seasons are caused by

The avg. year after year conditions of temp, precip, winds, and clouds in an area is known as

The most recent major ice age in N. America extended as far south as

Some scientists theorize that continental movements may cause climate change by

The climate zones lying between 23.5 and 66.5 degrees N and S latitude are called the

Temperate CONTINENTAL climates have cold winters

Over the past 200 years, the level of carbon dioxide in the atmosphere has

The Great Plains east of the Rocky Mountains have a

Oceans make the temperatures of nearby land MORE extreme

Scientists predict that banning the use of CFC's will

An El Nino event typically occurs every

Which of the following do scientists think will probably cause Earth's next ice age?

What is the dependent variable and where is it located?

As the amount of ozone decreased, the amount of ultraviolet radiation that reaches us INCREASED

The climate on the leeward side of a mountain differs from that on the windward side mostly in

If an organism today needs certain conditions, then organisms in the past need the same cond.

El Nino is a weather pattern that forms in the

Earth's ozone layer

A temperate continental climate with short cool summers and long, bitterly cold winters is the

The sun's rays are least direct

Climates are classified according to two major factors:

An arid or semiarid climate occurs where precip is GREATER than potential evaporation

When glaciers melted after the last ice age, the sea level became HIGHER

In winter in the S Hemisphere, the south end of Earth's axis is tilted AWAY FROM the sun

In addition to temp and precip, Koppen's climate system classified climates by a region's

The farther you live from an ocean, the more likely your climate will be a

Over the last 120 years, the average temp. of the troposphere has DECREASED

A tropical wet climate exists in the United States only in

The three kinds of temperate marine climates ALL have

Near the end of both March and September

Clues to what ancient climates were like come from all of the following EXCEPT

Sea and land breezes over a large region that change direction with the season are called