air

Question 1

what does air consist of

Answer 1

21% oxygen

78% nitrogen

Question 2

air pollution is caused by…

Answer 2

air pollutants

Question 3

what are the 3 air pollutants

Answer 3

carbon monoxide
sulfur dioxide
oxides of nitrogen

Question 4

what is the source/ cause of carbon monoxide

Answer 4

caused by incomplete combustion of fossil fuels in car engines

Question 5

what is the source/ cause of sulfur dioxide

Answer 5

natural source: caused by volcanic eruptions

manmade source: burning of fossils fuels in industries

Question 6

what is the source/ cause of oxides of nitrogen

Answer 6

natural source: lightning activity

manmade source: high temperatures in car engines

Question 7

what are the effects of carbon monoxide

Answer 7

it react with haemoglobin in the blood, reducing the oxygen level in the body = death

Question 8

what are the effects of sulfur dioxide and oxides of nitrogen

Answer 8

irritates the eyes
breathing difficulties
acidic oxides reacts with water in the air –> form acidic rain = kill aquatic life and corrodes buildings

Question 9

what does acid rain destroys?

Answer 9

buildings
kill marine life
it filters important nutrients from the soil and destroys plants

Question 10

what are the major contributors of acid rain

Answer 10

sulfur dioxide

oxides of nitrogen