weather and climate

A student takes a sample of atmospheric gases and identifies all of the gases present in the sample. Which gas will most likely make up the largest percentage of the sample?

• Oxygen

• Nitrogen

• Water Vapor

• Carbon Dioxide

Most of Earth’s atmosphere and weather is located in which

layer?

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

Why is the ozone content of the stratosphere important to living organisms?

• Ozone prevents the radiation of heat from Earth

• Ozone is necessary to create oxygen for living things

• Ozone absorbs ultraviolet radiation from the sun.

• Ozone absorbs infrared radiation from the sun.

The presence of greenhouse gases, such as carbon dioxide, in Earth’s atmosphere is important to Earth’s ability to support human life.

How would Earth be different without greenhouse gases in its atmosphere?

• More solar radiation would be reflected back into space.

• More solar radiation would penetrate Earth's crust and mantle.

• More heat from solar radiation would escape into space.

• More heat from solar radiation would be stored in Earth's core.

Most of the Earth's air and weather are located in which layer of the atmosphere?

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

Earth’s equator receives more direct sunlight than the regions to its north and south. This distribution of sunlight accounts directly for which phenomenon?

• The rotation of storm systems.

• the westward deflection of equatorial winds.

• the formation of calm "eyes" in the center of cyclones

• the movement of rising air currents away from the center.

Which best describes how air pressure can be affected on hot summer days?

• The air expands and becomes less dense, creating areas of low pressure.

• The air expands and becomes less dense creating areas of high pressure

• The air expands and becomes more dense, creating areas of low pressure.

• The air expands and becomes more dense, creating areas of high pressure.

Wind always blows in what direction?

• From high pressure to low pressure

• From low pressure to high pressure

• Air pressure does not affect wind

• Air pressure can only affect wind speed.

In the summer, coastal towns usually experience cool ocean breezes, as shown in the diagram.

Which process creates the type of ocean breeze shown?

• Cool air above the ocean sinks and warm air above the land rises, causing wind to blow towards the land

• Cool air above the ocean rises and warm air above the land sinks, causing wind to blow towards the sea

• Warm water evaporates and condenses above the ocean, causing wind to blow towards the land

• Warm water condenses and precipitates above the ocean, causing wind to blow towards the sea

Which type of weather will Air Mass A will most likely bring?

• cool and dry

• warm and dry

• cool and humid

• warm and humid