ECOLOGY mcq
ECOLOGY 1. Which one is not a pollutant: ( a ) Heavy metal ( b ) Photo Chemical Smog ( c ) Stone dust ( d ) VAM 2. Pollution of big cities can be controlled to large extent by- ( a ) Wide roads and factories away from city ( b ) Cleanliness drive and proper use of pesticides ( c ) Proper sewage and proper exit of chemicals from factories ( d ) All of the above 3. The Ecological pyramid that is always upright ( a ) Pyramid of energy ( b ) Pyramid of biomass ( c ) Pyramid of number ...