A. Low ozone layer thickness in polar regions is due to cold climatic conditions
B. Amount of unburnt hydrocarbons emitted by two stroke petrol engine is more as compared to
that emitted by a four stroke engine
C. Carbon monoxide present in the two stroke petrol engine exhaust is much less as compared to
that emitted from a four stroke engine
D. Mercury as a pollutant can enter the blood stream & the digestive system/ lungs and is
responsible for causing Minamata disease
Recent Comments