Global Warming

What is the greenhouse effect?

• warming of the earth due to gases in our atmosphere.
• cooling of the earth due to gases in our atmosphere

We need the natural greenhouse effect for Earth to be habitable.

• True
• False

The enhanced greenhouse effect leads to global warming.

• True
• False

What are the 5 main greenhouse gases?

• CO2, N2O, CH4, H2O, O3
• CO2, NO2, NH4, H2O, O2

Which 2 greenhouse gases contribute the MOST to global warming of Earth?

• N2O and H2O
• O3 and H2O
• CO2 and CH4

Which of the following sets of evidence supports global warming?

• CO2 levels rising
• Sea Levels rising
• Glacier mass decreasing
• All of the Above

The following graph tells us what?

• Sea Levels are decreasing.
• Sea Levels are rising.

The main human activity that releases greenhouse gases is

• using bottled water
• burning fossil fuels
• texting on cellphones
• eating meat

The greenhouse gas having the greatest role in human-caused global warming is

• methane
• carbon dioxide
• CFCs (chlorofluorocarbons)
• ozone

What is the greenhouse effect?

• warming of the earth due to gases in our atmosphere.
• cooling of the earth due to gases in our atmosphere