3.3 greenhouse Gasses

T/F: Water vapor is a greenhouse gas

• True
• False

Without any greenhouse effect the Earth would be...

• Fine
• Too Cold to Support Life
• Very Hot

The warming of the atmosphere by the trapping of heat being radiated to space is called

• evaporation
• condensation
• the greenhouse effect
• radiation

T/F: Some greenhouse gases are naturally present in the Earth's atmosphere

• True
• False

How does the Earth keep itself warm?

• Sunlight keeps the Earth warm.

• There are heat lamps orbitting above the Earth's atmosphere.

• The greenhouse gases trap the warm air and send it back to the Earth's surface.

The gas molecules that cause the Earth's greenhouse effect are all of the following except

• carbon dioxide

• water vapor

• methane

• nitrous oxide

• oxygen

What happens to the temperature if more greenhouse gases are released into the atmosphere?

• Temperature goes up
• Temperature goes down

1.  Certain gases in the atmosphere – water vapor, carbon dioxide, methane and nitrous oxide – help maintain the Earth’s temperatures and climate. These are called: __________ . 

• A.  ozone gases
• A.  solar gases
• A.  greenhouse gases 
• A.  stomach gases

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.

The area of human activity responsible for the highest greenhouse gas emissions is

• energy supply

• transport

• agriculture

• industrial