UPSC CSE Prelims 2010 Q61 — Environment & Ecology PYQ with Answer

Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons is this attributable?

1. The anaerobic conditions associated with rice cultivation cause the emission of methane.

2. When nitrogen based fertilizers are used, nitrous oxide is emitted from the cultivated soil.

Which of the statements given above is/are correct?