Chapter 17 - the atmosphere and environment

Question 1

what is the percentage of nitrogen in air

Answer 1

78%

Question 2

where to get nitrogen from

Answer 2

Fractional distillation of liquid air

Question 3

what are the uses of nitrogen

Answer 3

Make ammonia
Preserve food

Question 4

what is percentage of oxygen in air

Answer 4

21%

Question 5

where to get oxygen from

Answer 5

Fractional distillation of liquid air
Decomposition of hydrogen peroxide

Question 6

what are the uses of oxygen

Answer 6

Breathing/ oxygen tanks, combustion of things, welding/ making steel

Question 7

what are the percentage of other gases (mainly argon) in the air

Answer 7

1%

Question 8

where to get other gases (mainly argon) from

Answer 8

Fractional distillation of liquid air

Question 9

what are the uses of other gases (mainly argon)

Answer 9

Welding/ making steel, fill light bulbs, provide an inert atmosphere to prevent oxidation of steel

Question 10

what is the percentage of carbon dioxide in the air

Answer 10

0.03%

Question 11

where to get carbon dioxide from

Answer 11

Decomposition of metal carbonates and combustion of fuels

Question 12

what is the uses of carbon dioxide

Answer 12

Photosynthesis and fill fire extinguishers

Question 13

what is the acronym to remember the pollutant gases

Answer 13

cant stop oxidising me and u

Question 14

what are the pollutants

Answer 14

Carbon monoxide
sulfur dioxide
oxides of nitrogen
methane
unburnt hydrocarbons

Question 15

man made sources of Carbon monoxide

Answer 15

-incomplete combustion of petrol in car engines
-incomplete combustion of fossil fuels

Question 16

natural sources of Carbon monoxide

Answer 16

• forest fires

Question 17

effects on human health due to Carbon monoxide

Answer 17

-is a colourless and poisonous gas that reacts with haemoglobin in blood to form carboxyhaemoglobins that prevent transportation of oxygen around the body causing death by suffocation

Question 18

reduce the effects of Carbon monoxide

Answer 18

Ensure combustion of fuels and fossils fuels in complete
Fix catalytic converters in cars to oxidase the carbon monoxide to carbon dioxide

Question 19

man made sources of sulfur dioxide

Answer 19

Combustion of fuels containing soulful like coal in factories

Question 20

natural sources of sulfur dioxide

Answer 20

-volcanic eruptions

Question 21

effects on environment due to sulfur dioxide

Answer 21

Forms acid rain that corrodes buildings and affects aquatic life and plants.

Question 22

effects on human health due to sulfur dioxide

Answer 22

Irritates eyes and causes breathing problems

Question 23

reduce the effects of sulfur dioxide

Answer 23

Burn less fuels with suffuse like coal

Question 24

manmade sources of oxides of nitrogen

Answer 24

Combustion of fuels in cars at high temperature

Question 25

natural sources of oxides of nitrogen

Answer 25

Lightning activity

Question 26

effects on environment due to oxides of nitrogen

Answer 26

Forms acids rain that corrodes buildings and harms plants and aquatic life

Question 27

effects on human health due to oxides of nitrogen

Answer 27

Causes lung damage

Question 28

reduce the effects of oxides of nitrogen

Answer 28

Fix catalytic converters in cars to reduce nitrogen monoxide to nitrogen gas.

Question 29

natural sources of methane

Answer 29

Decay of plants and animals by bacterial action

Question 30

effects on environment due to methane

Answer 30

Is a green house gas that causes global warming

Question 31

man made sources of unburnt hydrocarbons

Answer 31

Incomplete combustion of hydrocarbons in petrol

Question 32

effects on human health due o unburnt hydrocarbons

Answer 32

Causes cancer

Question 33

effects on the environment due to unburnt hydrocarbons

Answer 33

Reacts with oxides of nitrogen to form smog and ozone

Question 34

reduce the effects of unburnt hydrocarbons

Answer 34

Ensure combustion of hydrocarbons in petrol is complete Fix catalytic converters to oxidase unburnt hydrocarbons to carbon dioxide and water

Question 35

effects of acid rain

Answer 35

Corrodes buildings Increases acidity of water harming aquatic life Increases acidity of soil harming crops

Question 36

reducing the effects of acid rain

Answer 36

Reduce acidity with slaked lime Burn fuels with less soulful like coal Put catalytic converters in cars to reduce soulful dioxide and oxides of nitrogen

Question 37

effects of global warming

Answer 37

Polar ice caps melt increasing water level and causing floods in countries

Question 38

harmful gas given put in catalytic converters

Answer 38

Carbon dioxide which is a green house gas that traps heat and cause global warming

Question 39

2 alterative fuels

Answer 39

Ethanol mixed with petrol and biogas

Question 40

advantages of using ethanol fuel

Answer 40

Less polluting compared to pure petrol and renewable resource