Question

The greenhouse and enhanced greenhouse effects refer to the return of approximately ______ percent and greater than ______ percent of the heat radiated by Earth.

Answer 1

Answer:

The greenhouse and enhanced greenhouse effects refer to the return of approximately 80 percent and greater than 80 percent of the heat radiated by Earth.

Explanation:

During natural greenhouse effect :

. Solar radiation reaches the earth

. Re-radiation of heat occurs

. Less re-emitted heat

. More heath escapes into space

Hence the greenhouse effect refers to return of 80% of heat radiated by Earth.

While during Human Enhanced Greenhouse effect :

. Solar radiation reaches earth

. Re-radiation of heat occurs

. More re-emitted heat

. Less heat escapes into space

Hence the enhanced greenhouse effect refers to return of more than 80% of heat radiated by Earth .