Courses
Grow skills with quality courses
Photochemical smog is related to the pollution of -----
(a) soil
(b) water
(c) noise
(d) air
Water pollution is mainly caused by ----
(a) decay of bodies of aquatic animals
(b) industrial effluents
(c) excessive rain
(d) growth of phytoplankton
Which one of the following is a greenhouse gas?
(a) carbon dioxide
(b) carbon monoxide
(c) ozone
(d) oxygen
The most dangerous metal pollutant of automobile exhaust is---
(a) cadmium
(b) silver
(c) lead
(d) manganese
Taj Mahal is threatened due to the effect of-----(a) chlorine
(b) sulphur dioxide
(c) oxygen
(d) hydrogen
Most important causative pollutant of soil maybe-----(a) plastics
(b) iron junks
(c) detergents
(d) glass junks