Air

Question 1

Composition of air

Answer 1

78% Nitrogen
21% Oxygen
1% Noble Gas
0.03% C02
variable water vapour

Question 2

Source & Effect of Carbon Monoxide

Answer 2

-Incomplete combustion of fuels in vehicles and factories

-Colourless, odourless gas that prevents blood from transporting oxygen to body

Question 3

Source and Effect of Nitrogen Oxides

Answer 3

-Lightning or Internal combustion in engines at HIGH TEMPS where H2 and O2 reacts

-Forms acid rain and causes breathing problems

Question 4

Source and Effect of Sulfur Dioxide

Answer 4

-Volcanic eruptions and combustion of fossil fuels

-Forms acid rain and causes breathing difficulties

Question 5

Source and Effect of Methane

Answer 5

-Decaying matter, cow farts/poop

-Is a greenjouse gas that contributes to global warming

Question 6

Source and Effect of Unburnt Hydrocarbons

Answer 6

-Hydrocarbons in fuel that have not been burnt

-cause eye irritation, react with Nitrogen Oxides to form haze, forms smog and produces sulfur dioxide, nitrogen dioxide and ozone

Question 7

Source and Effect of Ozone

Answer 7

-Reacts with unburnt hydrocarbons in sunlight, lightning, reacts with oxygen and sunlight

-reduces visibility and causes breathing difficulties

Question 8

Acid rain

Answer 8

corrodes limestone and metals
leeches essential nutrients from soil
lowers pH if soil

Question 9

Carbon Cycle

Answer 9

Respiration/Combustion/Decomposition
(addition of CO2)

Photosynthesis/Ocean uptake
(Removal of CO2)