Green House Effect' means (1) Pollution in houses in tropical region (2) Prevention of ultraviolet radiation by the ozone layer (3) Trapping of solar energy due to atmospheric gases (4) Damage to green painted buildings
(3) Trapping of solar energy due to atmospheric gases Explanation: The greenhouse effect occurs when Earth's atmosphere traps solar radiation because of the presence of certain gases, causing the heating of the earth. These greenhouse gases include water vapor, CO2, methane, nitrous oxide (N2O) and other gases, ac-cording to the Environmental Protection Agency (EPA