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

• A. 1 only
• B. 2 only
• C. Both 1 and 2
• D. Neither 1 nor 2