Causes and Effects of Air

Air is made up of mostly

• Carbon dioxide

• Oxygen

• Nitrogen

• Water vapor

To reduce air pollution, we can

• Put on a mask on hazy days

• Take the bus instead of driving

• Remove the limits on the amount of air pollutants that vehicles can produce

• Increase the amount of electricity that we use

Which of the following is FALSE?

• Air has mass

• Air does not have a particular smell

• Air does not have a particular taste

• Air is made up of ONLY nitrogen, oxygen, and carbon dioxide

Which of the following is NOT an air pollutant?

• Carbon monoxide

• Nitrogen

• Sulfur dioxide

• Dust particles

Which of the following is a possible cause of acid rain?

• Acids weaken structures made of metal

• Factories dump chemical waste into the river

• Acids break down statues made of limestone

• Burning fossil fuels release harmful gases into the air

When there is haze, we should NOT

• Put on a mask

• Go outdoors

• Turn on the air-conditioner

• Use an air purifier

Which of the following is an effect of haze?

• Some people develop breathing problems

• Vehicles produce more soot

• Factories produce more carbon dioxide

• The quality of soil changes

Which of the following is not an effect of acid rain?

• Soil becomes too acidic for plants to grow well

• Some areas experience flooding

• The population of marine animals decreases

• Paints on vehicles wear off quickly

Exhaust fumes from some vehicles are black because they contain

• Carbon monoxide

• Soot

• Sulfur dioxide

• Carbon dioxide

Why do farmers practice the slash and burn method?

• To clear the land for farming

• To find water sources for their crops(plants)

• To destroy plants that compete with their crops for carbon dioxide

• To release carbon dioxide into the air for their crops to grow well