Greenhouse Effect and Global MCQs with Answers

The average temperature of the surface of the earth increases is known as?

• A.Greenhouse Effect
• B.Global Warming
• C.Ozone Depletion
• D.Acid Rain

Which of the following is not part of greenhouse gases?

• A.Carbon dioxide
• B.Methane
• C.Oxygen
• D.Water vapour

Which is a greenhouse effect gas that traps heat radiated back from the earth to maintain the earth's temperature?

• A.Oxygen (O₂)
• B.Nitrogen (N₂)
• C.Carbon Dioxide (CO₂)
• D.Hydrogen (H₂)

Past Paper MCQ

What are chemical substances that increase the earth's surface temperature commonly known as?

• A.Greenhouse gases
• B.Chlorofluorocarbons
• C.Aerosols
• D.Particulate matter

The mean residence time of methane (CH₄) in atmosphere is ?

• A.3-7 years
• B.10-15 years
• C.50-100 years
• D.1-2 months

Climate change has a significant impact on Pakistan because ?

• A.It stabilizes the temperature throughout the year
• B.It leads to increased agricultural productivity
• C.It reduces the frequency of monsoon rains
• D.It causes extreme weather events like floods and droughts

Which of the following is not known as a greenhouse gas?

• A.Carbon dioxide
• B.Methane
• C.Hydrogen
• D.Nitrous oxide

Which of the following is not the source of carbon dioxide emission?

• A.Burning of fossil fuels
• B.Deforestation
• C.Solar power
• D.Cement production

Increased concentration of which gas is responsible for causing Global Warming?

• A.Nitrogen (N₂)
• B.Carbon dioxide (CO₂)
• C.Oxygen (O₂)
• D.Hydrogen (H₂)

Which gas among the following is a major greenhouse gas?

• A.Oxygen
• B.Nitrogen
• C.Carbon Dioxide
• D.Hydrogen