3. What are natural sources of greenhouse gases?

Greenhouse gases are naturally occurring gases in the Earth's atmosphere that trap heat and contribute to the greenhouse effect. Some of the natural sources of greenhouse gases include:1. Volcanic eruptions: Volcanoes release carbon dioxide (CO2) and other greenhouse gases during eruptions. These gases can contribute to the greenhouse effect and influence climate patterns.2. Decomposition of organic matter: When plants and animals die, their remains decompose, releasing carbon dioxide (CO2) and methane (CH4) into the atmosphere. These gases can contribute to the greenhouse effect.3. Ocean release: Oceans absorb and release carbon dioxide (CO2) as part of their natural processes. When CO2 dissolves in seawater, it forms carbonic acid, which can then release carbon dioxide into the atmosphere.4. Wetlands: Wetlands, such as swamps and marshes, produce methane (CH4) as a byproduct of the decomposition of organic matter in waterlogged conditions. Methane is a potent greenhouse gas.5. Permafrost thaw: Permafrost is a layer of permanently frozen soil found in polar regions. As global temperatures rise, permafrost can thaw, releasing stored methane (CH4) and carbon dioxide (CO2) into the atmosphere.It is important to note that while these natural sources of greenhouse gases contribute to the greenhouse effect, human activities, such as the burning of fossil fuels and deforestation, have significantly increased the concentration of greenhouse gases in the atmosphere, leading to enhanced global warming and climate change.