5.10.2.2 Ways of reducing the use of resources

Question 1

The reduction in use, reuse and recycling of materials by end users

Answer 1

reduces the use of limited resources, use of energy sources, waste
and environmental impacts.

Question 2

what are produced from limited raw materials

Answer 2

Metals, glass, building materials, clay ceramics and most plastics

Question 3

Much of the energy for the
processes comes from?

Answer 3

limited resources.

Question 4

Obtaining raw materials
from the Earth by

Answer 4

quarrying and mining causing environmental impacts

Question 5

some products such as glass bottles can be ?

Answer 5

reused

Question 6

Glass bottles can be?

Answer 6

crushed and melted to make different glass products

Question 7

Metals can be recycled by ?

Answer 7

melting and recasting or reforming into
different products.

Question 8

The amount of separation required for recycling depends on ?

Answer 8

the material and the properties required of the final
product. For example, some scrap steel can be added to iron from a
blast furnace to reduce the amount of iron that needs to be
extracted from iron ore.