C1

Question 1

What is air mostly made up of ?

Answer 1

Nitrogen, Oxygen and Argon

Question 2

How much Nitrogen and Oxygen is in the air?

Answer 2

78% Nitrogen and 21% Oxygen

Question 3

In the early atmosphere, volcanoes released large amounts of….

Answer 3

Carbon dioxide and Water vapour

Question 4

Four billion years ago the earth atmosphere was very..

Answer 4

Hot.

Question 5

How are humans changing the gases in the atmosphere?

Answer 5

By burning fuels

Question 6

Name 3 harmful pollutants?

Answer 6

1. Carbon Monoxide
2. Nitrogen Oxides
3. Sulfur Dioxide

Question 7

What does Carbon Monoxide do to humans?

Answer 7

It reduces the amount of oxygen blood can carry.

Question 8

What is good air quality?

Answer 8

Air that has very few pollutants

Question 9

Lots of pollutants in the air means…

Answer 9

Poor air quality.

Question 10

How much more carbon dioxide is there in the air in the last 50 years?

Answer 10

25%

Question 11

How is carbon dioxide linked to climate change?

Answer 11

It is a greenhouse gas which traps heat in atmosphere.

Question 12

There is a WHAT between air quality and heath?

Answer 12

Correlation

Question 13

What is needed for any fuel to burn and release energy?

Answer 13

Oxygen

Question 14

Hydrocarbon fuel + oxygen = ?

Answer 14

carbon dioxide + water ( + energy)

Question 15

What is oxidation?

Answer 15

When oxygen is added to a substance

Question 16

What is reduction?

Answer 16

What is oxygen is removed from a substance

Question 17

What is an oxidation reaction called ?

Answer 17

Combustion.

Question 18

How can you make a fuel burn more rapidly?

Answer 18

Use Pure oxygen

Question 19

What is incomplete combustion?

Answer 19

When there is not enough oxygen in a reacrion

Question 20

Name 1 indirect pollutant?

Answer 20

Acid rain

Question 21

Where is NO formed?

Answer 21

In furnaces and engines at temps about 1000 degrees Celsius

Question 22

What 2 things can happen of there is not enough air to burn the fuel.

Answer 22

1. Poisonous carbon monoxide is made

2. carbon particulates are made

Question 23

Name 4 ways in which pollutants are removed from the air?

Answer 23

1. particulate settle down on surfaces
2. sulfur and nitrogen oxides react with water and oxygen to produce acid sulfuric acid and nitric acid
3. carbon dioxide is used in photosynthesis
4. carbon dioxide dissolves in rain and oceans

Question 24

How can you reduce sulfur dioxide ?

Answer 24

By burning oil and gas instead

Question 25

How can power stations remove particulates?

Answer 25

By using electrostatic fillers

Question 26

What does a flu gas desulfurisation do?

Answer 26

Remove sulfur dioxide from waste gases

Question 27

Name two ‘wet scrubbing’ ways to remove sulfur dioxide from power station waste?

Answer 27

1. using sea water,it absorbs sulfur dioxide

2. using calcium oxide and calcium sulfate

Question 28

Name 3 ways to reduce our use of fossil fuels?

Answer 28

1. using alternative energy sources
2. using public transport or walking/cycling
3. improving building insulation

Question 29

Name 3 types of bio fuels

Answer 29

1. wood chips
2. palm oil
3. alcohol made from sugar

Question 30

What does it mean when bio fuels are carbon neural?

Answer 30

When burned they release the same amount of carbon dioxide as the plant originally too to grow

Question 31

what produces less CO2 for the same amount of energy released?

Answer 31

Gas

Question 32

What does a Catalytic Converter do?

Answer 32

It allows pollutant gases to react with each other.

Question 33

what can damage a catalytic converter?

Answer 33

Sulfur

Question 34

what type of car produces No Pollutants?

Answer 34

Electric cars