Multiple choice

Consider the following statements:

  1. Growing rice results in the release of methane into the atmosphere.
  2. Kyoto Protocol is to carbon dioxide as Montreal Protocol is to carbon monoxide.

Which of the given statements is/are correct?

  1. Only (1)

  2. Only (2)

  3. Only (1) and (2)

  4. Neither (1) nor (2)

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement (1) is correct. The flooding of rice field cuts off the oxygen supply from the atmosphere to the soil that results in anaerobic fermentation of soil organic matter. Methane is a major end product of anaerobic fermentation. It is released from submerged soils to the atmosphere by diffusion and ebullition and through roots and stems of rice plants. Statement (2) is incorrect. The Kyoto protocol is the proposal to reduce Carbon Dioxide, and the Montreal protocol is to reduce the Chlorofluorocarbons to protect the ozone layer.