Question

Green house effect is warming due to

(a) infra-red rays reaching earth

(b) moisture layer in atmosphere

(c) increase in temperature due to increase in carbon dioxide concentration of atmosphere

(d) ozone layer of atmosphere.

Answer 1

ANS: C

Increase in temperature due to increase in carbon dioxide concentration of atmosphere

When any might fall on the earth (shorter wave) will be absorbed and some of the absorbed heat transformed and radiate back to space in the form of longer wave length. This longer wave length heat trapped inside the atmosphere by green house gases (CO2 and CH4), due to that the radiated heat can not escape from earth leads to increasing of earth temperature and it is similar to green house. The greenhouse that lets light in and keeps the heat within to warm the plants growing inside the house.