What is the largest source of greenhouse gas emissions in the United States?
  • fertilizer production
  • agriculture
  • industrial plants
  • electricity production
How does this refrigerator-freezer model compare with others in terms of energy efficiency?
  • it is much more efficient than other models
  • it is much less efficient than other models
  • it is slightly more efficient than other models
  • it is slightly less efficient than other models
During summer in the Southern Hemisphere, the Northern Hemisphere experiences
  • A tilt toward the sun
  • winter
  • summer
  • excess rainfall
Which of the following gases is most responsible for the greenhouse effect?
  • nitrous oxide
  • methane
  • oxygen
  • carbon dioxide
What are greenhouse gases?
  • gases that cause climate change
  • gases that emit green smoke
  • gases that are used to make green colored glass
Industrialization is a contributing factor to climate change.
  • True
  • False
Some of the Earth's most fragile ecosystems that could be greatly impacted by climate change live in the
  • tropical rainforest
  • tundra
  • oceans
  • African Sahara desert
As a result of climate change food prices could
  • increase
  • decrease
  • stay the same
Climate change can cause increases in asthma, allergies and heart disease.
  • True
  • False
Visible light reaches Earth’s surface while infrared light is trapped as heat. Which characteristic of Earth’s atmosphere causes this to happen?
  • the hole in the ozone
  • the greenhouse effect
  • atmospheric pressure
  • the inversion layer
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
  • lower levels of ozone in the atmosphere
  • lower levels of nitrogen in the atmosphere
  • higher levels of carbon dioxide in the atmosphere
  • higher levels of oxygen in the atmosphere
Which of the following is the best conclusion that can be made from this graph?
  • atmospheric carbon dioxide levels have been decreasing since 1960
  • Hawaii has a lot of carbon dioxide
  • humans have been working hard to decrease carbon dioxide levels
  • atmospheric carbon dioxide levels have increased steadily since 1960
Which of the following gases DOES NOT trap heat?
  • carbon dioxide
  • nitrogen
  • water vapor
  • methane
Compared to other greenhouse gases, carbon dioxide is very effective in trapping heat near the surface of the Earth.
  • true
  • false
Which of the following have been linked to climate change?
  • droughts
  • flooding
  • melting of polar ice caps
  • all of the above
Some greenhouse gases are naturally present in the Earth's atmosphere
  • True
  • False
Which of the following is contributing to an increase in carbon dioxide in the atmosphere?
  • deforestation
  • photosynthesis
  • oceans
  • all of the above
Things you can do to help decrease global warming include:
  • Eat more ice cream.
  • Keep your freezer door open.
  • Keep your air conditioner on high.
  • Turn off your lights when you’re not using them.
Melting of glaciers and polar ice caps....
  • will result in cooler temperatures in the Arctic
  • will result in sea-levels rising
  • Will have no effect on ecosystems
  • None of the above
What is the definition of weather?
  • a period of abnormally dry weather that lasts at least 2 years
  • the specific condition of the atmosphere at a particular place and time
  • a complex community of organisms and the community's environment
  • a release of toxic gas
What is the average weather for a particular time and region called?
  • drought
  • weather
  • emissions
  • climate
The second layer of the atmosphere up from Earth, where the ozone layer is that protects us from harmful UV rays, is the
  • thermosphere
  • stratosphere
  • troposphere
  • mesosphere
What is climate change?
  • Don't know
  • Change in global climate, such as an increase in the global temperature and major variations in precipitation patterns.
  • The earth has become sick.
  • A change in the earth's climate due to human causes.
Which human activity contributes the most carbon dioxide to the atmosphere?
  • fishing
  • breathing
  • burning fossil fuels
  • farming
Generally, the farther a place is from the equator, the warmer its climate will be.
  • True
  • False
Which is not a factor that affects climate?
  • altitude
  • latitude
  • lakes and oceans
  • living organisms
Which season is shown in the northern hemisphere?
  • winter
  • spring
  • summer
  • fall
Which season is shown in the southern hemisphere?
  • winter
  • spring
  • summer
  • fall
Which provides clues to the climate of the distant past
  • rocks along ocean coastlines
  • air in caves and deep holes
  • water samples from the ocean holes
  • air pockets in ice caps
Which is a natural source of greenhouse gases?
  • aerosols
  • deforestation
  • volcanic eruptions
  • burning fossil fuels
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