Answer:
Greenhouse gases, like carbon dioxide (CO2), methane (CH4), and water vapor, trap heat in the Earth's atmosphere. When sunlight reaches the Earth's surface, it is absorbed and re-radiated as infrared radiation. Greenhouse gases trap some of this infrared radiation, preventing it from escaping back into space. This trapped heat warms the planet, maintaining a temperature suitable for life. However, human activities, such as burning fossil fuels, release additional greenhouse gases, enhancing the natural greenhouse effect and leading to global warming.
