Answer:
Answer A
Explanation:
Answer A, because, metropolitan area network is a network within a city or town and wide area network usually connects many cities. So, both C & D are spread on a wide area.
Ummm what is the question
Answer:
Kevlar. Kevlar is similar in structure to nylon-6,6 except that instead of the amide links joining chains of carbon atoms together, they join benzene rings. The two monomers are benzene-1,4-dicarboxylic acid and 1,4-diaminobenzene.
Explanation:
The answer is Intumescent. I am pretty sure this is right.