Unit II Air pollution

Which of these is NOT a part of the photochemical smog?

• Sulphur Dioxide

• Hydrocarbons

• Nitrogen oxides

Which of the following is NOT a greenhouse gas?

• CO₂

• N₂

• CH₄

• H₂O

The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was

• phosgene

• methylisocyanate

• methylamine

• ammonia

Which of the following natural resources are nonrenewable?

• Water

• Natural gas

• Animals

• wind

Whcih of the following is biodegradable pollutant ?

• Domestic waste

• DDT

• Mercury salts

• Aluminum foil.

Which of the following is an effect of global warming?

• Flooding of low lying coastal land

• Longer days in the summer

• Longer days in the summer

• All the above

5.  Ozone is

• a)      desirable in the troposphere

• b)      an undesirable pollutant in the stratosphere

• c)      filters harmful UV-radiation in the stratosphere

• d)     none

Which one of them is caused by air pollution

• Sleeping sickness

• Asthma

• Malaria

• Dengue

Acid rain occurs when ________ and __________ added in air due to burning of fossil fuels combine with water vapour in the atmosphere and fall as rain, snow or fog

• mud and sand

• suspended particles and smoke

• Sulphur dioxide and Nitrogen oxides

• Carbon Monoxide and Carbon dioxides

the contamination of the atmosphere by the introduction of pollutants from human and natural sources

• air pollution

• smog

• acid deposition

• climate change