Answer: <u>Global Warming </u>is the gradual increase in the temperature of earth’s atmosphere.
Explanation:
Due to presence of atmosphere on Earth, the sun radiations are trapped in the lower atmosphere. This rises the temperature of the Earth gradually. This has led to a habitable temperature of the Earth.
With increase in green house gases in the atmosphere recently, more heat is being trapped leading to rise in average temperature of Earth. This is known as Global warming.
