Climate Change - The Basic Facts
7 Questions
| Attempts: 35
Questions and Answers
- 1.
Which statement is true?
- A.
The climate is warming
- B.
The climate is cooling
- C.
The climate is not changing
- D.
Nothing has been proved yet.
Correct Answer
A. The climate is warmingExplanation
The climate is warming. All of the evidence, including air temperature, ocean temperature, melting of snow and sea level rise, indicates a rise in the average global temperature. Sometimes, this is called global warming, but using the term climate change is more accurate because it describes change, rather using the oversimplified term of ‘warming’. Even though the average global trend shows an increase in temperature, there may be localised places that did not become warmer.Rate this question:
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- 2.
What is climate change caused by?
- A.
Humans
- B.
Nature
- C.
Both
Correct Answer
C. BothExplanation
Both. The climate changes naturally. It changed throughout history and we can study how this happens. But with industrialisation, humans started to change the climate too. (This answer does depend upon the definition that is given to climate change: some organisations define climate change as being purely anthropogenic in order to isolate the issue they are targeting.)Rate this question:
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- 3.
What is a greenhouse gas (GHG)?
- A.
Carbon dioxide (CO2)
- B.
The gas released by greenhouses that causes climate change
- C.
Gases that trap (capture) heat in the atmosphere
- D.
Methane (CH4)
Correct Answer
C. Gases that trap (capture) heat in the atmosphereExplanation
Gases that trap heat in the atmosphere. They are called greenhouse gases because they work in the same way as the glass of a greenhouse. Some of the sunlight that is reflected from the Earth’s surface is trapped by the layer of greenhouse gases within the Earth’s atmosphere. This has a warming effect. Each gas has a warming influence on the atmosphere. The different greenhouse gases are: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphurhexafluoride (SF6). Water vapour (steam) can also be included.Rate this question:
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- 4.
What has caused the increase in Greenhouse gas emissions?
- A.
The use of fossil fuels
- B.
Change in land use
- C.
Agriculture
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
All of the above. Since the industrial revolution, humans have been emitting more Greenhouse gases into the atmosphere. These emissions come from things like cars, planes and machinery which are powered by fossil fuels. Generally, the increase in CO2 is mainly caused by fossil fuel use and partially by changes of land-use. The increase in CH4 is due to fossil fuel use and agriculture, and the increase in N2O is primarily due to agriculture.Rate this question:
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- 5.
What is a fossil fuel?
- A.
Burning dinosaur fossils
- B.
Coal, oil and natural gas
- C.
Petrol
- D.
Solar panels
Correct Answer
B. Coal, oil and natural gasExplanation
Coal, oil and natural gas. These fuels are actually composed of historic dead material, so it’s kind of like burning dinosaur fossils! There is a limited amount of these resources for this reason (we won’t have any more dead dinosaurs quickly enough!). Petrol is in fact an example of a fossil fuel, because it is a type of oil. At the moment, most of our lives are powered by fossils fuels, which are the main source of greenhouse gases. But we are developing renewable technology, like solar panels and wind turbines which can provide us with energy that doesn’t emit greenhouse gases.Rate this question:
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- 6.
How much do experts think the temperature will rise by the end of the century?
- A.
0.0°C
- B.
0.0 - 1.4°C
- C.
0.3 - 6.4°C
- D.
2.0 - 6.4°C
- E.
0.6 - 4.0°C
Correct Answer
C. 0.3 - 6.4°CExplanation
0.3 - 6.4°C and 0.6 - 4.0°C. The likely range that could occur would lie anywhere between 0.3 - 6.4°C, depending on the different actions that humans take to lower their emissions. The best estimate is that it will lie between 0.6 - 4.0°C, again depending on different scenarios. Notice that warming will happen, even if emission levels remain at the same concentration as in the year 2000.Rate this question:
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- 7.
What are the likely impacts of climate change?
- A.
20-30% of species (animals and plants) will be at an increased risk of extinction
- B.
Poor communities will suffer the most
- C.
Global crop production (agricultural production) will increase
- D.
Global crop production (agricultural production) will decrease
- E.
Increased malnutrition
- F.
All of the above
Correct Answer
F. All of the aboveExplanation
All of the above. The natural world will be influenced dramatically, with animals and plants trying to move or to adapt to the change in temperature, causing possible extinctions. Human societies will be highly affected, but it will generally be those living in poor conditions that will be affected the most. Crop productivity could see an increase with the rise in temperature, but only up to 1 - 3°C. Above this, there will be a decrease. Malnutrition and diseases will increase.Rate this question:
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Mar 21, 2022Quiz Edited by
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Mar 04, 2011Quiz Created by
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