Greenhouse Effect

What happens when greenhouse gas levels in the atmosphere increase?

• Nothing

• The atmosphere traps more heat

• The atmosphere traps less heat

• None of the above

Ozone is produced

• By atmospheric processes

• While cooking

• While eating

• None of the above

Earth's atmosphere works like the glass of a greenhouse:sunlight enters the atmosphere and is converted to and trapped as:

• Heat

• Light

• Carbon Dioxide

• Methane

Thermal _______ occurs when heat is trapped and causes temperatures to go up.

• Radiation

• Warming

• Temperatures

• Evaporation

Nitrogen oxide, a greenhouse gas, is mostly produced by:

• Photosynthesis

• Bacteria

• Human Respiration

• None of the above

Gases that trap heat in the atmosphere are called ______ gases.

• ozone

• thermal

• greenhouse

• warming

Thermal ______ occurs when heat is trapped and causes temperatures to go up.

• heat

• warming

• radiation

• insulation

How is the atmosphere like a greenhouse?

• Greenhouse gases reflect sunlight like the walls of a greenhouse.

• Water vapor condenses into clouds, like droplets condense of greenhouse walls.

• Greenhouse gases trap heat like the walls of a greenhouse.

• None of the above.

The greenhouse effect is:

• A natural phenomenon that is important for making Earth habitable.

• An unnatural phenomenon that has no beneficial purpose.

• A natural phenomenon that decreases surface temperatures.

• None of these.

Chlorofluorocarbons are _________.

• Man-made

• Naturally occurring.

• Produced by bacteria.

• None of the above.