Atmospheric Pollution ICSE Grade 9

This colorless, odorless gas can be deadly if breathed in. It is produced by incomplete combustion (not enough oxygen).

• SO₂
• CO
• NO
• NO₂

The general term for air pollution that reduces visibility, especially in cities. 

• atmospheric transport
• pollution 
• smog
• wet scrubber

What causes acid rain?

• High concentrations of sulfuric or nitric acid from pollution
• Fertilizer use
• Pesticide use
• CFCs

Acid rain can damage

• Drinking water sources
• Aquatic life
• Architecture/buildings
• All options are correct

Greenhouses gases

• Absorb and radiate heat
• Destroy the ozone layer
• Cause respiratory problems
• Create smog

Which of the following are greenhouse gases?

• Carbon dioxide
• Methane
• Water vapor
• All answers are correct

Greenhouse gases, in moderate amounts, keep the Earth's temperature stable

• True
• False

Combines with other pollutants to form acid rain

• Nitrogen oxides & sulfur dioxide
• Particulate matter & lead
• Nitrogen oxides & ground-level ozone
• Sulfur dioxide & ground-level ozone

The ozone layer is damaged by

• CFCs
• Increase in greenhouse gases
• Increased global temperatures
• Sulfuric and nitric acids

What compound is a reddish brown gas that gives photochemical smog its distinctive color?

• nitrogen dioxide

• nitrous oxide

• carbon monoxide

• nitric oxide