Question

What is Global Warming? ​

Answer 1

Answer:

Global warming is the phenomenon of gradual increase in temperature near the Earth’s surface. This phenomenon has been observed over the past one or two centuries. This change has disturbed the climatic pattern of the earth. However, the concept of global warming is quite controversial. But, the scientists have provided relevant data in support of the fact that the temperature of the Earth is rising constantly.

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Answer 2

Global warming is a phenomenon in which the temperature of the earth rises, due to an increase in concentration of pollutants such as: Carbon monoxide, Sulphur dioxide and especially Carbon dioxide( $CO_{2}$ ). It is now a common concern as the temperature is increasing day by day because of the human activities such as:

• Deforestation
• Emission of Pollutants by vehicles, industries etc.
• Green house effect
• Excessive use of CFC's