Explain how agriculture can contribute to increased methane emissions.

Agriculture contributes to increased methane emissions primarily through enteric fermentation in ruminant animals, such as cattle, and from the decomposition of organic matter in rice fields. These processes release methane, a potent greenhouse gas, into the atmosphere.

This question assesses the understanding of specific human activities that increase greenhouse gas emissions. The answer provides a clear explanation of the mechanisms by which agriculture contributes to methane emissions, demonstrating knowledge of the topic.