Climate Change - It refers to the change in the usual weather. It involves major changes in temperature, precipitation, or wind patterns that can occur over a particular period of time., Greenhouse Effect - It is a process in which when sunlight reaches the surface of the Earth, it can either reflect the light back into space or it can be absorbed by the Earth., Carbon Dioxide - What does "(CO2)" stands for?, Methane  - What does "(CH4)" stands for?, Chlorofluorocarbons - They are harmful to the ozone layer in the earth's atmosphere owing to the release of chlorine atoms on exposure to ultraviolet radiation.,

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