5.10.2.2 ways of reducing the use of resources

Question 1

The reduction in use, reuse and replying of materials by end users reduces the use of..

Answer 1

-Limited resources
-use of energy sources
-waste and environmental impacts

Question 2

What 5 things are mainly produced from limited raw materials

Answer 2

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

Question 3

Obtaining raw materials from the Earth by ______ and ______ causes major environmental impacts.

Answer 3

Quarrying and mining

Question 4

Some products like glass bottles can be reused, they can be crushed down and melted to make different glass products. Other products cannot be reused, and so, are reclined for a different use.. Like?

Answer 4

Garbage, food waste, food-tainted items, ceramics and kitchenware, windows and mirrors, plastic wrap, packing peanuts and bubble wrap, wax boxes.

Question 5

Metals can be recycled by what processes, to form different products

Answer 5

Melting, recasting or reforming

Question 6

The amount of separation required for recycling depends on the material and the properties required for the final product. For example..

Answer 6

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.