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What is air pollution?

• Release of chemicals into sea

• Release of contaminants into atmosphere

• Release of contaminants into soil

• None of the above

Which is a common gaseous pollutant?

• Light trespass

• Chlorofluorocarbons

• Oil

• Aircraft noise

• Air pollution

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• Noise pollution

• Water pollution

• Light pollution

It is the excessive misdirected or unwelcome light?

• Air pollution

• Water pollution

• Noise pollution

• Light pollution

It encompasses vehicle noise, aircraft noise and human noise.

• Air pollution

• Thermal pollution

• Water pollution

• Noise pollution

What causes soil contamination?

• Carbon monoxide

• Sulfur dioxide

• Chlorofluorocarbons

• Pesticides and herbicides

• Noise pollution

• Thermal pollution

• Soil contamination

• Water pollution

What causes approximately 14,000 deaths per day?

• Contaminated drinking water

• Contaminated air

• Radioactive

• Noise pollution

It leads to global warming which affects ecosystem.

• Smog and haze

• Nitrogen oxide

• Sulfur dioxide

• Carbon dioxide emission

What reduces the amount of sunlight received by plants?

• Carbon dioxide emission

• Nitrogen oxide

• Smog and haze

• Sulfur dioxide