Drug abuse is defined as . the consumption of legal drugs for medical purposesb. the consumption of illegal drugs for medical purposesc. the nonmedical or improper use of a drug, which can interfere with a healthy lifed. using drugs on an occasional basis until mood is altered

C. Drug abuse is when you become dependent on that drug and "need it to survive." People abusing drugs will do whatever necessary to get more drugs, even dangerous and illegal things. Even prescription drugs (drugs taken for medical purposes) can be abused if you take more than prescribed. I hope this helps :)

Ithink the answer is 1. warmth

The answer is sensory neruon