Multiple choice

Kyoto Protocol covers emissions of six main greenhouse gases and methane is one of them. Which of the following are sources of methane emission?

  1. Combustion of fossil fuels
  2. Wetlands
  3. Automobiles

  1. 1 and 2 only

  2. 1 and 3 only

  3. 2 and 3 only

  4. 1, 2 and 3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All three are sources of methane. Fossil fuels are one of the largest sources of CH4 emissions. Methane emissions from passenger cars (automobiles) have, however, dropped as the use of catalytic converters has increased. Methane can also be emitted by natural sources such as wetlands.

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