Weather and Atmosphere

The seasons are caused by

• Earth's varying distance from the sun

• Earth's changing rate of rotation

• the tilt of Earth's axis as Earth revolves around the sun

• Shifting climates of Earth's surface

The average, year after year conditions of temperature, precipitation, winds and clouds in an area are known as

• climate

• weather

• global warming

• seasons

The atmosphere is

• the layer in which weather occurs

• the layer that contains the ozone layer

• the layer of water in the oceans

• the layer of gases that surround the earth

The two most abundant gases in the atmosphere are

• carbon dioxide and oxygen

• carbon dioxide and nitrogen

• nitrogen and oxygen

• nitrogen and hydrogen

Hurricanes typically form over

• cold ocean water

• tropical rain forest

• warm ocean water

• very dry land masses

Scientists who study weather and try to predict it are called

• astronomers

• climatologists

• meteorologists

• weatherologists

A funnel-shaped cloud that touches Earth's surface is called a

• hurricane

• cyclone

• tornado

• thunderstorm

The ozone layer is found in the

• troposphere

• stratosphere

• mesosphere

• thermosphere

From Earth to space, the main layers in our atmosphere are

• troposphere, stratosphere, mesosphere, thermosphere

• stratosphere, troposphere, mesosphere, thermosphere

• mesosphere, troposphere, stratosphere, thermosphere

• thermosphere, troposphere, stratosphere, mesosphere

Increased carbon dioxide may cause global warming by

• allowing more sunlight into the atmosphere

• reflecting more sunlight from clouds

• reducing the amount of oxygen in the air

• trapping more heat in the atmosphere