UPPSC 2019 General Studies I Solved Paper

Question : 27 of 150

Marks: +1, -0

The gas, which is emitted in the paddy fields and increases the earth's temperature is

Nitrogen
Carbon dioxide
Carbon monoxide
Methane

Solution:

(d) Anaerobic decomposition of organic material in rice fields produces methane

( CH _{4})

. It escapes to the atmosphere primarily by diffusive transport through the rice plants during the growing season. The Intergovernmental Panel on Climate Change

\;\; (∣ PCC , \;\; 1996)

estimated the global emission rate of methane from paddy fields at 60 Tg\/year, with a range of 20 to 100 Tg\/year.

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