Respuesta :
"Stimulants increase breathing and heart rate while depressants slow these functions" is the one among the following choices given in the question why drugs like depressants described as the opposite of amphetamines. The correct option among all the options that are given in the question is the fourth option or option "d".
Amphetamines are drugs which speed up the working of the brain. They are also known as stimulants because they increase feelings of well-being, energy and alertness. Drugs like depressants are described as the opposite of amphetamines because stimulants increase breathing and heart rate while depressants slow these functions. Correct answer: D Depressants slow normal brain function, which is the opposite of the amphetamines.