Atmosphere MCQs with Answers

Pick up the correct statement about photochemical smog:

• A.It is formed by the reaction of nitrogen oxides and volatile organic compounds in the presence of sunlight
• B.It contains ozone, peroxyacetyl nitrate (PAN), and other secondary pollutants
• C.It is primarily composed of sulfur dioxide and particulate matter from coal burning
• D.Both A and B

Feeling uncomfortable breathing in unpressurized cabins is due to?

• A.Low pressure of O2
• B.High pressure of CO2
• C.Low humidity
• D.High concentration of nitrogen

What is not a cause of air pollution?

• A.Burning of fossil fuels
• B.Industrial emissions
• C.Water from domestic use
• D.Vehicle exhaust

Peroxyacetyl nitrate (PAN) is a by-product of ?

• A.Acid rain
• B.Ozone depletion
• C.Photochemical smog
• D.Global warming

How is the nitrogen of the environment utilized for life on earth?

• A.Through respiration by animals
• B.Through photosynthesis in plants
• C.Through lightning, high temperature, and pressure
• D.Through evaporation and condensation

SPM stands for:

• A.Soluble Particulate Mixture
• B.Suspended Particle Measurement
• C.Standard Particulate Material
• D.Suspended Particulate Matter

What would be the color of the sky if there were no atmosphere?

• A.Blue
• B.Black
• C.White
• D.Red

Past Paper MCQ

Atmospheric pressure decreases with the _?

• A.Increase in humidity
• B.Increase in temperature
• C.Increase in altitude
• D.Increase in wind speed

Past Paper MCQ

Smog particle:

• A.Ozone
• B.Particulate matter
• C.Carbon monoxide
• D.Sulfur dioxide

Past Paper MCQ

The ozone layer protects the earth from which rays sent by the sun?

• A.Infrared rays
• B.Ultraviolet rays
• C.X-rays
• D.Gamma rays