POLLUTION OF OF AIR AND WATER, grade 8 Ayaan rastogi

Which gas is responsible for depletion of ozone layer?

• Chloroflurocarbons

• oxygen

• hydrogen

• helium

What does SPM stand for?

• superior particulate matter

• Solid prime matter

• Solid particulate matter.

In which year Ganga Action Plan was launched?

• 1980

• 1984

• 1982

• 1985

What radiations are absorbed by CO₂?

• Infrared radiations

• None of these

• Ultraviolet radiations

• Ultrared radiations

Which element is present in the exhaust of automobiles?

• Calcium

• Lead

• Chromium

• Magnesium

The solid or liquid particles dispersed in the air are called

• oxides

• aerosols

• acids

The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is

• water pollution

• soil pollution

• air pollution

• noise pollution

The major causes of air pollution include

• burning of coal and petrolium

• deforestation

• afforestation

• recycling

Chlorofluorocarbon is used in

• Refrigerators

• Air conditioners

• perfumes

• all of these

Green House gas is

     

• oxygen

• carbondioxide

• nitrogen

• helium