Question

Assertion :Concentration of methane in the atmosphere has more than doubled in the last 250 years. Reason: Wetlands and rice fields are the major source of methane.

• A. Both A and R are true and R is the correct explanation of A
• B. Both A and R are true and R is not the correct explanation of A
• C. A is true but R is false
• D. Both A and R are false

Answer 1

The correct option is B Both A and R are true and R is not the correct explanation of A

Concentration of methane has more than doubled up in the last 250 years. However, the source of this increase has been the microbes found in wetlands, rice field fields guys of ruminants and extensive extraction and use of natural gas.

So, the correct answer is option B.