Pre Assessment Global Warming

Which layer of the atmosphere do we live in?

• Troposphere
• Stratosphere
• Thermosphere
• Ionosphere

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

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.

What temperature would Earth be with no greenhouse effect?

• 25 degrees C
• 50 degrees C
• -18 degrees C
• 0 degrees C

Over an extended period of time, the United States has been responsible for the majority of global CO2 emissions, at 25% of the total for all countries. In 2008, the largest emitter was

• United States
• Japan
• China 
• Russia

Which of the following would make a greater contribution to rising sea levels?

• melting sea ice
• melting land-based ice
• increased levels of precipitation in some areas
• increased levels of atmospheric water vapor

In a warmer world, we would expect more

• droughts
• hurricanes
• desert expansions
• all of these

The graph shows the increase in atmospheric

carbon dioxide concentration over several

decades.

Increasing carbon dioxide levels will directly affect

Earth's....

• magnetic and gravitational fields.

• weather and climate systems.

• mantle convection.

• rotation speed.

Which of the following is largely responsible for

depleting Earth's ozone layer?

• PCB's

• DDT

• CFC's

• CO₂