Question

Naturally occurring amounts of greenhouse gases have a mean warming effect of about _______on Earth.

• A. ${33}^{o}C$
• B. ${34}^{o}C$
• C. ${35}^{o}C$
• D. ${36}^{o}C$

Answer 1

The correct option is A ${33}^{o}C$

On Earth, naturally occurring amounts of greenhouse gases have a mean warming effect of about ${33}^{\circ }C$.

Hence the correct option is A.