Question

question 14
when used this drug can make the user experience sudden, unpredictable
flashbacks or repeats of experiences on drugs years after use.
cocaine
marijuana
lsd
molly
question 15
this drug changes activity in neurotransmitters and can cause loss of attention span,
learning ability issues, & memory issues.
cocaine
ecstasy
ketamine
tobacco

Explanation:

• Question 14: LSD (lysergic acid diethylamide) is known for causing flashbacks (also called "hallucinogen persisting perception disorder") where users can experience sudden, unpredictable recurrences of drug - related experiences years after use. Cocaine is a stimulant with effects like increased energy and euphoria but not typically flashbacks. Marijuana can cause relaxation and altered perception but not the specific flashback phenomenon described. Molly (MDMA) is more associated with feelings of empathy and euphoria.
• Question 15: Ecstasy (MDMA) affects neurotransmitters such as serotonin. Prolonged or heavy use can lead to issues like loss of attention span, learning difficulties, and memory problems. Cocaine's main acute effects are stimulatory (e.g., increased heart rate, euphoria), and its long - term effects are more related to cardiovascular and nasal problems (if snorted). Ketamine is a dissociative anesthetic with effects like dissociation from the environment but not the specific neurotransmitter - related cognitive issues (attention, learning, memory) in the question. Tobacco's main effects are related to nicotine addiction and respiratory/cardiovascular problems.

Answer:

Question 14: LSD
Question 15: Ecstasy