How is excessive content of CO_2 responsible for global warming ?

1.	How is excessive content of CO_2 responsible for global warming ?
Answer» SOLUTION :`CO_2` is very essential gas. The AMOUNT of `CO_2` in atmosphere is increases by increasing combustion of crude FUEL and the decomposition of lime stone which is utilize in PRODUCTION of cement. This results in an INCREASE in the atmospheric temperature, there by causing global warming.

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