L3: Impact on the atmosphere Part 4

Which of the following causes air pollution?

• volcanic eruptions

• burning of fossil fuels

• forest fires

• all of the above

Which describes a way that people can minimize their impact on air pollution?

• decrease burning of oil and coal

• invent ways to remove particulate matter from the air

• decrease the size of the ozone layer

• invent ways to treat asthma

Decreasing the use of fossil fuels like coal and oil will decrease all of the forms of air pollution except:

• particulate matter

• photochemical smog

• acid precipitation

• CFCs

Photochemical smog is caused when nitrogen and carbon react in sunlight. Which describes a way humans can decrease the amount of photochemical smog?

• pass laws to eliminate CFCs

• use sources of energy other than fossil fuels

• increase the amount of particulate matter in the air

• decrease the amount of ozone in the atmosphere

Photochemical smog is the result of nitrogen and carbon, often from car exhaust, reacting in sunlight. Which describes something that would likely decrease the amount of smog over time?

• a decrease in gasoline prices

• an increase in the number of cars on the road

• a decrease in the price of cars

• an increase in cars that use gasoline efficiently

Which of the following is Not a way to reduce air pollution?

• Turning on light and electronic equipment

• Using public transportation

• Invest in more energy-efficient technologies like electric cars

• Use solar panels