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1. What is global warming?
The increased green house effect is caused due to increase in the resulting in the average increase in temperature of the atmosphere. This phenomenon is called global warming.
2. What is dry ice? What are its uses?
is called dry ice, which is used as a refrigerant.
Uses:
As the gas is so , it condenses moisture in the air, generating a dense fog that is used in stage shows and movie effects.