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Study Quiz Section 12.1
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1

According to the most recent scientific studies are climates today really changing?
A)Yes, but it is part of a natural cycle of warming that has occurred in the past.
B)Yes, and while warming trends, have happened before, it is happening faster now than ever before.
C)No, not really. What we are seeing is part of a natural cycle.
D)No, they are not changing at all.
2

Scientists predict that the warming trend could affect the Northern Hemisphere more than the Southern Hemisphere. Why do they think this will happen?
A)Because more of the world's population lives in the Northern Hemisphere.
B)Because the Southern Hemisphere releases smaller amounts of greenhouse gases than the Northern Hemisphere does?
C)Because the hole in the ozone layer is primarily over the Northern Hemisphere?
D)Because the Northern Hemisphere has more land and less water and the specific heat capacity of water is larger than that of land.
3

According to scientists, the potential increase in Earth's average surface temperature could be:
A)0-2.5°C
B)1.1-8.3°C
C)1.4-5.8°C
D)4.9-8.7°C
4

The greenhouse effect is a natural process. Imagine what it might be like on Earth without it.
A)Earth would be very warm during the daytime and very cold at night.
B)Earth would be too much colder all of the time.
C)Earth would be much warmer all of the time.
D)Earth would be colder during the day and warmer at night.
5

The most abundant natural greenhouse gas is?
A)Water vapour
B)Carbon Dioxide
C)Methane
D)Dinitrogen Monoxide
6

There are a number of characteristics that define a greenhouse gas. Which of the following is NOT a characteristic of a greenhouse gas?
A)Greenhouse gases absorb infrared radiation.
B)Greenhouse gases remain in the atmosphere for long periods of time.
C)Greenhouse gases rise high in the atmosphere.
D)Greenhouse gases have increased in amount in the atmosphere since 1850.
7

The single largest source that is cited as being the cause of increased carbon dioxide levels in the atmosphere is:
A)Burning of fossil fuels.
B)Forest fires
C)Plant respiration.
D)Deforestation
8

The rainforests, oceans, and fossil fuel deposits are all considered carbon sinks. What does this term mean?
A)That they are sources of carbon.
B)That they trap carbon for a period of time.
C)That they help dispose of excess carbon in the atmosphere.
D)That they help dispose of both carbon and water from the atmosphere.
9

The topic of climate change is a widely debated one with many different points of view. This controversy is mainly because:
A)It is a simple issue that will require people to change their lifestyles in order to correct.
B)Scientists understand the problem but cannot find a solution.
C)Climate change is just a natural process that is taking place and we do not need to worry about it.
D)It is a complex issue that will require people to change their lifestyles in order to correct.





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