Many polymers are non-biodegradable and so their disposal can cause a number of environmental issues. There are three main methods for disposing of polymers: recycling, landfill and burning.

Recycling is one method of disposal for polymers. It has a number of advantages and is often preferred over disposal through landfill or burning. It does, however, also have some disadvantages.

1

Can a plastic be recycled more than once?

2

What are the two main steps involved in recycling a polymer?

3

Why is burning polymers bad for the environment?

4

Give an advantage of recycling over disposing of plastics in landfill.

5

Is the amount of crude oil used greater for recycling or burning?