The Environment Protection Act of Government of India was passed in
Some times secondary pollutants like ozone, PAN (Peroxyacetyl nitrate), HNO3, H2SO4 formed from primary pollutants are more toxic than primary pollutants. This phenomenon of increased toxicity in pollutants is called
Brown air causes heart and lung problems and they are carcinogenic. They are caused by
Effects of pollution is observed first on
Rise of atmospheric temperature because of high concentrations of carbon dioxide is known as
Maximum ozone depletion has taken in which part of the earth?
Which one of the following method is used to remove pollutant gases like sulphur dioxide and ammonia from the atmosphere?
____________is the form of agriculture which avoids the use of synthetic fertilizers.
Slash and burn agriculture is a characteristic of
According to our National Forest Policy, forests are divided into