NEET Biology question

Not in NEET syllabus

**Assertion:** The methane component of greenhouse gases contributing to global warming is about 20%. **Reason:** Introduction of multi-point fuel injection engines in automobiles has decreased the methane content in the exhausts.

(A)Both assertion and reason are true and reason is the correct explanation of assertion
(B)Both assertion and reason are true but reason is not the correct explanation of assertionCorrect
(C)Assertion is true but reason is false
(D)Assertion is false but reason is true

Answer: (B)

Solution

Methane does contribute approximately 20% to the total greenhouse effect (assertion true), and the adoption of multi-point fuel injection engines has indeed improved combustion efficiency, reducing unburnt hydrocarbon/methane emissions from automobiles (reason true). However, this automotive engineering

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-130401