First Name _______________________ Last Name __________________________
Teacher Name ______________________ Period ____________ Date _____________
What do you know about Climate Change?
1. Without the natural greenhouse effect, the Earth, on average, would be:
A. much warmer.
B. much colder.
C. about the same temperature.
D. We don’t know.
2. The Earth’s temperature remains stable when:
A. the Earth reflects the same amount of energy as it absorbs.
B. the amount of solar energy absorbed by Earth is doubled.
C. the amount of radiation increases and albedo decreases.
D. the amount of radiation decreases and the albedo increases.
3. To know what climate was like in the far past, scientists most often use:
A. thermometer readings from thousands of years ago.
B: natural records such as tree rings and ice cores.
C. computer models of the past.
D. written records from thousands of years ago.
4: How do we know that atmospheric carbon dioxide (CO2) concentrations have increased over the past 50 years?
A. From recent temperature readings
B. From tree rings
C: From direct measurements of the atmosphere
D. From growth of ice sheets
5. Earth’s atmosphere is made up of:
A. primarily nitrogen and less than 1% carbon dioxide.
B. only heat-trapping (or greenhouse) gases.
C. primarily oxygen and less than 1% methane.
D. carbon dioxide and methane, with less than 10% of it being nitrogen and oxygen.
6: To stabilize carbon dioxide concentrations in the atmosphere, carbon dioxide emissions from human activities must
A. be kept at current levels.
B. be increased.
C. be reduced.
D. be measured.
7. If global carbon emissions are kept constant at current levels, then global temperature would:
A. the answer cannot be known.
B. stay about the same.
C. decrease.
D. increase.
8. Which of the following choices best represents a way to mitigate (to lessen, to diminish) carbon dioxide emissions?
A. Drive more cars
B. Burn more coal
C. Cut down more trees
D. Use solar electricity
9. Which of the following is NOT a way to adapt to climate change?
A. Reduce use of fossil fuels
B. Build dams or levies the protect shoreline from flooding
C. Plant different crops that can better stand a changing climate
D. Wear light colored clothes on hot days
