Air pollution

Question 1

What problems can particulates in the air cause

-if they are i… they can get stuck in the l… and cause d…
—>r… problems
-they r… sunlight back into s… which can cause … dimming

Answer 1

-if they are inhaled they can get stuck in the lungs and cause damage
—>respiratory problems
-they reflect sunlight back into space which can cause global dimming

Question 2

What happens when there is not enough oxygen for fuels to burn

Answer 2

Incomplete combustion

Question 3

What is released in incomplete combustion

-p… of soot (c…) and u… fuel
-c… monoxide

Answer 3

-particulates of soot (carbon) and unburnt fuel
-carbon monoxide

Question 4

Negative effects of carbon monoxide

-it can stop your b… from properly carrying o… around the body, by binding to your h… so less O2 can be c…
—>can lead to f.. a coma or even …
-its very hard to d… as it has no c… or smell

Answer 4

-it can stop your blood from properly carrying oxygen around the body, by binding to your haemoglobin so less O2 can be carried
—>can lead to fainting a coma or even death
-its very hard to detect as it has no colour or smell

Question 5

How are nitrogen oxides formed

Answer 5

-nitrogen and oxygen in the air react because of the heat of the burning

Question 6

How is sulfur dioxide formed

Answer 6

-some fossil fuels eg coal can contain sulfur impurities, this then becomes oxidised

Question 7

What happens when sulfur dioxide and nitrogen oxides mix with clouds

Answer 7

They form dilute sulfuric acid and dilute nitric acid, which falls as acid rain

Question 8

Effects of acid rain

-kills p… and animals
-damages b… and statues
-makes m… corrode

Answer 8

-kills plants and animals
-damages buildings and statues
-makes metal corrode