Environmental Science
The unfavourable alteration of environment due to human activities is termed as

ecological disturbance
ecological degradation
pollution
catastrophe

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
Low clouds retard surface cooling at night better than clear skies because:

The formation of the clouds releases latent heat energy
The clouds are better conductors of heat than is the clear night air
The water droplets in the clouds reflect infrared energy back to earth
The clouds start convection currents between them
The clouds absorb and radiate infrared energy back to earth

ANSWER DOWNLOAD EXAMIANS APP