Explanation
The gas that is emitted from rice crops is:
(C) Methane.
Rice cultivation, especially in flooded paddy fields, is a significant source of methane (CH4) emissions. Methane is produced by anaerobic bacteria present in the waterlogged soil and the rhizosphere of rice plants during the process of decomposition of organic matter.
The flooded conditions in paddy fields create an oxygen-limited environment, favoring the growth of methane-producing bacteria. These bacteria break down organic material, such as plant residues and organic fertilizers, and release methane as a byproduct. Methane is then emitted from the soil into the atmosphere.
Methane is a potent greenhouse gas, with a much higher global warming potential than carbon dioxide (CO2). It contributes to climate change and is a significant concern in terms of agricultural emissions. Efforts are being made to develop and promote more sustainable rice cultivation practices that can reduce methane emissions, such as alternate wetting and drying techniques, improved water management, and the use of aerobic rice systems.
It is important to note that while methane emissions from rice cultivation are significant, they are also influenced by various factors such as soil conditions, management practices, and regional differences.
