[" 89.Assertion (A) Methane component of greenhouse "],[" gases contributing to global warming is about 20%."],[" Reason (R) Introduction of multi-point fuel injection "],[" engines in automobiles has decreased methane "],[" content in the exhausts."]

Assertion (A) : Methane component of greenhouse gases contributing to global warming is about 20 per cent. Reason (R) : Introduction of multi-point fuel injection engines in automobiles has decreased methane content in the exhausts.

Assertion (A) : Methane component of greenhouse gases contributing to global warming is about 20 per cent. Reason (R) : Introduction of multi-point fuel injection engines in automobiles has decreased methane content in the exhausts.

Assertion (A) : Methane component of greenhouse gases contributing to global warming is about 20 per cent. Reason (R) : Introduction of multi-point fuel injection engines in automobiles has decreased methane content in the exhausts.

Assertion (A) : Methane component of greenhouse gases contributing to global warming is about 20 per cent. Reason (R) : Introduction of multi-point fuel injection engines in automobiles has decreased methane content in the exhausts.

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: Methane component of green house gases contributing to global warming is about 20%. Reason. Introduction of multipoint fule injection engines in automobiles has decreased methane content in exhausts.

Which one of the followig green house gases contributes about 20% of global warming?

Assertion : Deforestation is one main factor contributing to global warming . Reason : Besides CO_(2) , two other gases, methane and CFCs are also included in GHGs.

Assertion : CO_2 and methane are called greenhouse gases. Reason : These - radiate heat and radiations cause global warming.

Assertion (A): Deforestation is one main factor contributing to global warming. Reason (R) : Besides CO_(2) , two other gases methane and CFCs are also included under greenhouse gases: