C10- exam questions
Study online at https://quizlet.com/_cuhpff
1. Water obtained by distillation does not (distilled) water is pure
need to be sterilised and is safe to
drink.
Suggest why.
2. How is fresh water sterilised? Using chlorine and using ozone
Tick () two boxes.
Using ammonia
Using chlorine
Using chromatography
Using filtration
Using ozone. (2)
3. Oil contains carbon and some sulfur. • carbon dioxide produced
When oil is burned, the products of • (which is) a greenhouse gas
combustion may be released into the • (therefore) surface temperature increases
atmosphere. • (therefore) global warming
• (so) climate change
- Explain the environmental effects of • (so) polar ice caps melt
releasing these products of combus- • (so) increasing sea levels
tion into the atmosphere. (6) • (so) flooding
• (so) extreme weather events
• (so) reduction in biodiversity
• (so) famine / drought
• sulfur dioxide produced
• (which causes) acid rain
• (so) damage to buildings / statues
• (so) damage to trees
• (so) damage to aquatic animals
• (so) respiratory problems in humans
1/9
, C10- exam questions
Study online at https://quizlet.com/_cuhpff
• carbon / soot produced
• (which are) particulates
• (which cause) global dimming
• (so) respiratory problems in humans
• carbon monoxide produced
• (which is) toxic
4. Suggest one reason why using solar solar is (a) renewable (source of energy)
energy is a more sustainable way of
generating electricity than burning oil
5. Solar energy may not be able to any two from:
replace the generation of electricity • sunshine is unreliable
from • increased demand for energy
fossil fuels completely. • lack of space
Suggest two reasons why. (2)
6. Copper can be obtained by: any three from:
- processing copper ores • recycling conserves copper ores
- recycling scrap copper. • recycling uses less energy
• recycling reduces waste
- Suggest three reasons why recycling
scrap copper is a more sustainable
way of obtaining copper than process-
ing copper ores. (3)
7. Describe how copper is extracted from 1. grow plants (on land containing copper ores)
low-grade ores by phytomining. (4) allow named plant
2. plants are burnt (to produce ash)
3. ash dissolved in acid (to produce a solution of a
2/9
Study online at https://quizlet.com/_cuhpff
1. Water obtained by distillation does not (distilled) water is pure
need to be sterilised and is safe to
drink.
Suggest why.
2. How is fresh water sterilised? Using chlorine and using ozone
Tick () two boxes.
Using ammonia
Using chlorine
Using chromatography
Using filtration
Using ozone. (2)
3. Oil contains carbon and some sulfur. • carbon dioxide produced
When oil is burned, the products of • (which is) a greenhouse gas
combustion may be released into the • (therefore) surface temperature increases
atmosphere. • (therefore) global warming
• (so) climate change
- Explain the environmental effects of • (so) polar ice caps melt
releasing these products of combus- • (so) increasing sea levels
tion into the atmosphere. (6) • (so) flooding
• (so) extreme weather events
• (so) reduction in biodiversity
• (so) famine / drought
• sulfur dioxide produced
• (which causes) acid rain
• (so) damage to buildings / statues
• (so) damage to trees
• (so) damage to aquatic animals
• (so) respiratory problems in humans
1/9
, C10- exam questions
Study online at https://quizlet.com/_cuhpff
• carbon / soot produced
• (which are) particulates
• (which cause) global dimming
• (so) respiratory problems in humans
• carbon monoxide produced
• (which is) toxic
4. Suggest one reason why using solar solar is (a) renewable (source of energy)
energy is a more sustainable way of
generating electricity than burning oil
5. Solar energy may not be able to any two from:
replace the generation of electricity • sunshine is unreliable
from • increased demand for energy
fossil fuels completely. • lack of space
Suggest two reasons why. (2)
6. Copper can be obtained by: any three from:
- processing copper ores • recycling conserves copper ores
- recycling scrap copper. • recycling uses less energy
• recycling reduces waste
- Suggest three reasons why recycling
scrap copper is a more sustainable
way of obtaining copper than process-
ing copper ores. (3)
7. Describe how copper is extracted from 1. grow plants (on land containing copper ores)
low-grade ores by phytomining. (4) allow named plant
2. plants are burnt (to produce ash)
3. ash dissolved in acid (to produce a solution of a
2/9
