Nylon is made when the appropriate monomers (the chemical building blocks which make up polymers) are combined to form a long chain via a condensation polymerisation reaction. The monomers for nylon 6-6 are adipic acid and hexamethylene diamine
A sentence has been given in Direct/Indirect Speech. Out of the four given alternatives, select the one which best expresses the same sentence inIndirect/Direct Speech.
The social security is a welfare plan and an insurance company that regulates the benefits for survivors of deceased workers, disabled workers, retirees and death as well as survivorship benefits.