Question

Regarding the assertion and reason, choose the correct answer.
Assertion [A]: Global warming reduces pH levels in the oceans.
Reason [R]: Carbon dioxide dissolves in water to form carbonic acid.

• A. Both A and R are true, and R explains A
• B. Both A and R are true, but R does not explain A
• C. A is true and R is false
• D. Both A and R are false

Answer 1

The correct option is A Both A and R are true, and R explains A

Global warming mainly results from an increase in the levels of greenhouse gases such as carbon dioxide and methane in the atmosphere. Carbon dioxide dissolves in water to form carbonic acid. This would result in an apparent decrease in pH levels in the oceans, adversely affecting marine life.