The layer of the atmosphere where weather occurs is:
a) Stratosphere
b) Mesosphere
c) Thermosphere
d) Troposphere
Answer: d) Troposphere
Which of the following is a man-made source of air pollution?
a) Volcanic eruptions
b) Wildfires
c) Industrial emissions
d) Sea spray
Answer: c) Industrial emissions
The term “global warming” refers to:
a) The decrease in Earth’s average temperature
b) The increase in Earth’s average temperature
c) The depletion of the ozone layer
d) The reduction of greenhouse gases
Answer: b) The increase in Earth’s average temperature
Which of the following is NOT a greenhouse gas?
a) Carbon dioxide
b) Methane
c) Nitrogen
d) Water vapor
Answer: c) Nitrogen
The chemical symbol for ozone is:
a) O
b) O2
c) O3
d) O4
Answer: c) O3
What causes the formation of acid rain?
a) Combustion of fossil fuels releasing sulfur dioxide and nitrogen oxides
b) Release of carbon dioxide from respiration
c) Ozone depletion in the atmosphere
d) Absorption of ultraviolet radiation by the atmosphere
Answer: a) Combustion of fossil fuels releasing sulfur dioxide and nitrogen oxides
Which gas is responsible for the blue color of the sky?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Methane
Answer: b) Nitrogen
Which layer of the atmosphere protects Earth from meteoroids?
a) Troposphere
b) Stratosphere
c) Mesosphere
d) Thermosphere
Answer: c) Mesosphere
The process by which water vapor turns into liquid water in the atmosphere is called:
a) Evaporation
b) Condensation
c) Sublimation
d) Transpiration
Answer: b) Condensation
Which gas is responsible for the greenhouse effect?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Argon
Answer: c) Carbon dioxide