Which gas is responsible for the warning effect from greenhouse gases?

The correct answer reflects the understanding that multiple greenhouse gases contribute to the warning effect associated with climate change. Each of the gases listed—carbon dioxide, methane, and nitrous oxide—plays a significant role in trapping heat in the Earth's atmosphere, leading to the greenhouse effect.

Carbon dioxide is one of the most abundant greenhouse gases and is primarily emitted through human activities such as fossil fuel combustion and deforestation. Methane is emitted during the production and transport of coal, oil, and natural gas, as well as from livestock and other agricultural practices. It is much more effective than carbon dioxide at trapping heat in the short term, although it is present in smaller quantities. Nitrous oxide also contributes to warming and is released from agricultural and industrial activities, as well as during combustion of fossil fuels and solid waste.

By recognizing that all three of these gases are involved in the greenhouse effect, the selection of this answer underscores the complexity of climate change and the multiple sources of greenhouse gas emissions that need to be addressed to mitigate its impacts. This collective recognition is crucial for formulating effective strategies for environmental policy and disaster response in the context of climate-related challenges.