Question

SSES SWE
vrai quesuons
1. Name one each of natural and man-made materials,
2. What are the long chain-like molecules made from smaller molecules called ?
3. Name two synthetic polymers.
4. What is the source of small molecules which are used in making synthetic polymers?​

Answer 1

Explanation:

1. Natural materials are fundamentally different from man-made materials -- the first are sourced from nature, while the latter are sourced from a scientific laboratory. Different types of materials have different applications and uses, whether everyday or specialized. You encounter all kinds of natural and man-made materials on a daily basis, even as you walk down the street.

2. polymer

3. Examples of synthetic polymers include nylon, polyethylene, polyester, Teflon, and epoxy. Natural polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins.

4. monomers

Answer 2

Answer:

1) natural :- tree

man made :- computer