Lesson 8: Waste Management/ Land Use

Question 1

Over time, why has more waste been produced?

Think, population….

Answer 1

1.) Rapid growth in human population PLUS increase in the standard of living means people are using more resources so more waste is produced.

Question 2

True or False

Waste and chemical materials will ALWAYS cause pollution, no matter how you deal with it.

Answer 2

• False.
• If waste is properly handled, then pollution won’t be caused.

Question 3

In what three places can pollution occur?

Answer 3

1.) In water.
2.) In air.
3.) On land.

Question 4

How does pollution occur in water? Ie. what pollutes water?

3 different chemicals/ substances.

Answer 4

1.) Sewage
2.) Fertiliser
3.) Toxic chemicals.

Question 5

What pollutes the air?

2 main SPEC answers

Answer 5

1.) Smoke (ie. smog.)
2.) Acidic gases (ie. sulphur dioxide/ oxides of nitrogen.)

Question 6

What does pollution do to animals and plants? What effect does this have on biodiversity?

Answer 6

• Pollution kills plants and animals which can reduce biodiversity.

Question 7

How do humans reduce the amount of land available for animals and plants?

4 main ways…

Answer 7

1.) Building on land.
2.) Quarrying.
3.) Farming
4.) Dumping waste.

Question 8

What is the issue with humans destroying peat bogs (and other areas of peat) in order to extract peat (a fuel?)

Answer 8

• Reduces the area of habitat for living organisms.
• Therefore, reduces the variety of different plants, animals and micro-organisms that live there (ie. reduces biodiversity in that habitat.)

Question 9

What is released when peat is decayed/ burnt?

Answer 9

• Release carbon dioxide into the atmosphere.

Question 10

What needs to be done to peat in order for it to release carbon dioxide into the atmosphere?

2 things….

Answer 10

• Decayed.
• Burnt

Question 11

2 examples of land pollution?

Answer 11

• Land-fill
• Toxic chemicals

Question 12

What is peat used for?
2 things….

Answer 12

• Used to produce garden compost.
• Used as a fuel.