Ecology - Qp7
8 Questions
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Questions and Answers
- 1.Global warming describes the warming effect certain gases have on the temperature of the earth's atmosphere under normal conditions.
- A.
True
- B.
False
- 2.The longwave radiation cannot pass through the glass as easily as the short waves.
- A.
True
- B.
False
- 3.______ is a major agent for the formation of acid rain.
- A.
Carbon dioxide
- B.
Sulphur dioxide
- C.
Nitrogen
- 4.Match the following statements:
- A. Therefore the destruction of vegetation, such as deforestation, reduces the amount of that which is removed from the atmosphere.
- A.
- B. This is the main greenhouse gas, but human activities are not known to have significant influence on the atmospheric concentrations of this.
- B.
- C. Mainly because of agricultural activities the concentration of this gas has doubled between 1750 and 1994.
- C.
- D. It has increased by 8% over the period 1770 to 1994.
- D.
- E. The concentration of these gases in the atmosphere is increasing by 8% per year.
- E.
- 5.The changes in global temperature, although apparently small, could cause very large changes in climate.
- A.
True
- B.
False
- 6.Ozone is a highly reactive, colourless gas in which each molecule contains two oxygen atoms, as opposed to oxygen in which there are three oxygen atoms.
- A.
True
- B.
False
- 7.The ozone layer is a band of concentrated ozone in the ______.
- A.
Troposphere
- B.
Mesosphere
- C.
Thermosphere
- D.
Stratosphere
- 8.The following are methods that may reduce waste: (Select three)
- A.
Buy in bulk
- B.
Avoid over-packaged products
- C.
Choose disposable items
- D.
Use rechargeable batteries
- E.
Use paper dishtowels and napkins
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