Final answer:
The substances alcohol, marijuana, cocaine, and others that alter mood and perception are known as psychoactive drugs, which can be used recreationally and come in various legal statuses.
Step-by-step explanation:
Alcohol, marijuana, cocaine, and a wide variety of other chemical agents that alter perceptions and moods are called psychoactive drugs. These substances change the function of the brain and result in alterations of mood, thinking, perception, and/or behavior.
The recreational use of psychoactive drugs often aims to alter consciousness to achieve a “high.” Psychoactive drugs are classified into different classes according to their pharmacological effects, including stimulants, depressants, hallucinogens, and others. Many of these drugs, such as alcohol and tobacco, can be legal, whereas others like cocaine and LSD are often illegal.