Answer:
With no "control" you have no base line to compare your results with, for whatever hypothesis your testing
Explanation:
Answer:
Drinking alcohol is bad habit .People drink alcohol in fun and entertainment .It can damage our body parts .
A neurotransmitter linked to pleasure in the brain. playing video games can increase dopamine which makes them so fun. illicit substances like coke can also increase dopamine artificially which make it so addictive.
