Atmosphere MCQs with Answers

What is the primary function of the ozone layer in the atmosphere?

• A.Reflects radio waves
• B.Traps infrared radiation
• C.Produces oxygen for breathing
• D.Absorbs ultraviolet rays

The presence of which one in the air can cause stone cancer?

• A.CO2
• B.NO2
• C.SO2
• D.O3

The amount of solid waste or concentration of gases other than oxygen increase in atmosphere is called?

• A.Water pollution
• B.Air pollution
• C.Soil pollution
• D.Noise pollution

A thick layer of air that surrounds the earth is known as?

• A.Hydrosphere
• B.Atmosphere
• C.Lithosphere
• D.Biosphere

Past Paper MCQ

Chlorofluorocarbons, which cause ozone depletion, are commonly used in which of the following products?

• A.Spray cans and refrigerators
• B.Plastic bottles and containers
• C.Paints and varnishes
• D.Detergents and soaps

At higher altitude, the temperature and density of the air are _?

• A.Higher
• B.Lower
• C.Same as at sea level
• D.Temperature higher, density lower

Which gas saves us from the harmful ultraviolet radiations coming from the sun?

• A.Nitrogen
• B.Oxygen
• C.Ozone
• D.Carbon dioxide

All of the following are pollutants, which one is not produced by vehicles?

• A.Carbon monoxide
• B.Nitrogen oxides
• C.CFCs
• D.Particulate matter

What is the consequence of CFCs destroying the ozone layer?

• A.Global warming
• B.Acid rain
• C.Skin cancer
• D.Respiratory diseases

The main cause of skin cancer is ?

• A.Ultraviolet radiation
• B.Chlorofluorocarbons
• C.Carbon monoxide
• D.Sulfur dioxide