pollution of air and water

Which of these problems can be caused by air pollution?

• Respiratory problems
• Reduced food sources for humans
• Increased disease for humans
• Decrease in global temperatures

What causes acid rain?

• High concentrations of sulfuric or nitric acid from pollution

• Fertilizer use

• Pesticide use

• CFCs

The ozone layer protects us from

• UV rays
• CFCs
• Increased atmospheric heat
• Decreased atmospheric heat

Greenhouses gases

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

A rapid growth of algae could lead to:

• A reduction of oxygen levels in the water

• Water that can support more life

• An increase in oxygen levels

We can prevent water pollution by:

• Reducing the use of plastic

• Proper disposal of chemicals

• Keeping the use of chemical fertilizers in check

• All of the above

TRUE or FALSE:  Although water pollution is bad, it doesn't actually cause anyone to die.

• TRUE
• FALSE

Which of the following is NOT a source of water pollution?

• Discharge of untreated industrial waste

• Oil spills

• Sewage

• Usage of plastic straws

Select the ways how we can reduce the effects of water pollution.

• Clean up polluted beaches and rivers.

• Throw only metal straws along the rivers.

• Provide bins along waterways

• Clear rubbish-clogged rivers.

Why do we need fresh air?

• To stay healthy and carry out daily activities

• So that our cars can work

• If our air is fresh, our water is also fresh