1) If the ice cap at the North Pole continues to shrink, which of the following is NOT a likely outcome?
Polar bears could decline or become extinct.
Seal populations would likely increase.
Arctic fox populations would be negatively affected.
Penguin populations would increase.
Indigenous people would lose a food source.
2) Which of the following poses the greatest threat to polar bears?
Tainted seal meat
3) Which of the following molecules is NOT considered a greenhouse gas?
4) Which of the following phenomena is a major cause of increasing greenhouse gas production?
A weakening economy leading to less efficient energy usage
An increasing global population, which is also becoming increasingly affluent
A more intense Atlantic hurricane seasons
A thinning of stratospheric ozone, causing an increase in UV radiation
Higher evaporation rates due to greater area of impervious surfaces
5) An increase in the concentration of greenhouse gases in the troposphere will lead to the reduction in heat radiated back to space in the form of
6) Which of the following best describes the class of compounds known as chlorofluorocarbons (CFCs)?
I. Volcanic eruptions release them into the atmosphere.
II. They are known ozone depleters.
III. They were targeted for banning in 1987 as part of the Montreal Protocol.
I and III
II and III
I, II, and III
7) Excluding anthropogenic sources of greenhouse gases, greenhouse warming can be considered
a necessary temperature moderating mechanism.
detrimental to sensitive sea life.
a leading cause in sea level rise.
responsible for a growing number of threatened and endangered species.
8) Which of the following fuels would release the most carbon dioxide in producing a given amount of energy?
9) Which of the following organizations was created by the UN to monitor, understand, and estimate the global impact of climate change?
10) Which of the following nations is responsible for the most carbon emissions on an annual basis?
The United States
11) Soils contain a large amount of stored carbon. The current and expected increase in temperature is likely to stimulate a positive feedback mechanism driven by
increased plant growth.
increased activity of decomposers in soils.
heightened soil erosion.
loss of groundwater recharge.
12) Which of the following natural disasters in the United States can be at least partly attributed to global warming?
Gulf oil spill
Exxon Valdez oil spill
Eruption of Mount St. Helens
13) Which of the following is NOT an example of how global warming has disrupted living organisms?
Earlier flowering of many plant species
Mistiming of bird hatching with emergence of insect prey
pH changes in oceanic waters
Expansion of the growing season
Delayed hibernation for terrestrial mammals
14) An organismal level effect that is partially the result of global warming may be seen in the disassociation of types of algae from their symbiotic hosts. This process is known as
15) An attempt at global collaboration in curbing greenhouse gas emissions was demonstrated by the
Clean Air Act.
Natural Resource Defense Council.
Environmental Protection Agency.
16) An approach to combating global warming by removing already-emitted greenhouse gas is termed
17) Excluding wetlands, an abundant, non-anthropogenic source of methane in the atmosphere is from
sugar cane production.
18) A potential source of natural short-term climate change can be seen with
19) The concentration of which of the following greenhouse gases is LEAST affected by human activity?
20) According to the U.S. Supreme Court, which agreement or legislation gives the EPA the authority to regulate CO2 emissions?
The Clean Water Act
The Clean Air Act
The Montreal Protocol
The Kyoto Protocol
The Comprehensive Environmental Response, Compensation, and Liability Act