Category: Pollution Mcqs

A.Radiation hazard
B.Desertification
C.Deforestation
D.Gleization
undefined

A.Global warming
B.Acid rain
C.Greenhouse effect
D.The UV radiations reach the earth
undefined

A.Excess use of fertilizers
B.Addition of wastes on soil
C.Reduction in soil productivity
D.All of these
undefined

A.Phosphate rock only
B.Agricultural fertilizers only
C.Sewage and phosphate rock
D.Sewage and agrcultural fertilizers
undefined

A.Cell membrances
B.DNA
C.Mitochondria and ribosomes
D.Nucleus
undefined

A.Pollutants in air
B.Use of detergents
C.Water pollution
D.Depletion of O3 layer
undefined

A.Troposphere
B.Stratosphere
C.Homosphere
D.Heterosphere
undefined

A.CO
B.CO2
C.C
D.SO2
undefined

A.By changing O2 into CO
B.By destroying the haemoglobin
C.By forming a stable compound with haemoglobin
D.By obstructing the reaction of O2 with haemoglobin
undefined

A.O3
B.CO
C.CO2
D.N2
undefined