Lead in water can cause
arthritis
hair falling
kidney damage
All of these
Pollutants released from iron and steel industry are
CO2, NO2, H2S
CO, CO2, SO2
CO2, SO2, NO2
CO2, NO, SO2
Ozone hole is maximum over
India
Pakistan
Australia
Antarctica
Persons working in cement plants and lime stone quarries are more prone to disease like
asthama
cancer
silicosis
pneumoconiosis
Aerosols present in air are
negatively charged
positively charged
neutral
combination of all of the above
Which of the following statement is false?
London smog is oxidising in nature
London smog causes bronchitis
London smog is formed in winter
London smog contains H2SO4 droplets
Which of the following pollutants is not emitted during volcanic eruptions ?
SO2
H2S
Hydrocarbons
CO
Global warming may result in
flood
cyclone
decrease in forest productivity
all of the above
The lowest layer of earth's atmosphere is
troposphere
mesosphere
stratosphere
ionosphere
Planting more and more trees helps to
reduce CO2 in the air
increase CO2 in the air
reduce O2 in the air
reduce CO2 and increase O2 in the air
