Environmental Chemistry: Pollution and Conservation - SS3 Chemistry Past Questions and Answers - page 1
Which of the following is a primary source of air pollution?
Volcanic eruptions
Fossil fuel combustion
Deforestation
Industrial emissions
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The release of untreated sewage into water bodies is an example of:
Air pollution
Land pollution
Water pollution
Noise pollution
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Acid rain is primarily caused by the emission of which pollutants into the atmosphere?
Carbon dioxide (CO2)
Nitrogen oxides (NOx) and sulphur dioxide (SO2)
Methane (CH4) and hydrochlorofluorocarbons (HCFCs)
Particulate matter (PM)
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Which of the following is a source of thermal pollution in water bodies?
Oil spills
Agricultural runoff
Industrial effluents
Discharge of heated water from power plants
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The depletion of ozone in the stratosphere is primarily caused by the release of:
Carbon monoxide (CO)
Volatile organic compounds (VOCs)
Chlorofluorocarbons (CFCs)
Lead (Pb) particles
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Eutrophication in water bodies is often caused by an excess of which nutrient?
Nitrogen
Oxygen
Carbon
Phosphorus
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Which of the following is a secondary source of air pollution?
Forest fires
Volcanic eruptions
Residential heating
Pesticide application
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Ground-level ozone, a major component of smog, is formed through reactions involving:
Sulphur dioxide (SO2) and sunlight
Carbon dioxide (CO2) and nitrogen oxides (NOx)
Methane (CH4) and water vapour
Nitrogen oxides (NOx) and volatile organic compounds (VOCs)
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Noise pollution is measured in units of:
Decibels (dB)
Particulate matter (PM)
Parts per million (ppm)
Micrometers (µm)
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Which of the following is a source of light pollution?
Agricultural runoff
Airplanes
Streetlights and outdoor advertising
Erosion of soil
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