Question

20. The main source of human-made plastics is_​

Answer 1

Answer:

The main source of synthetic plastic is crude oil, although coal and natural gas are also used.

Explanation:

Plastic has to be sourced and goes through several processes before it is ‘workable’ and can be made into the different stock forms ready to be manufactured.

Key points and basics:

– Plastics are either found naturally or are synthetic man-made

– The majority of everyday plastics are synthetic

– From crude oil compounds are formed called polymers – which is plastic

Synthetic plastics:

Most plastics used today are man-made, known as synthetic. The main source of synthetic plastic is crude oil, although coal and natural gas are also

Answer 2

Answer:

Crude oil .......

Explanation:

PLEASE FOLLOW ME ON BRAINLY......