Answer:
Your answer should be C I believe
Answer: Differences of opinions, ethics, and rivalry possibly
Depressants often cause slow movements and loss of sense of balance. These chemical substances reduce the speed and ability of neurotransmitters to communicate. Included in this category of substances are opioids, alcohol and marijuana related products. Pharmacological-related substances are sleeping pills and pain relievers, to help aid sleep and relax muscles.
Answer:
Gravity draws the matter in an interstellar cloud together to form a star.