Answer: Serotonin is likely in short supply
Explanation: serotonin is a neurotransmitter produced by nerve cells that is involved in depression, appetite, and is crucial in maintaining a sense of well-being, security, etc. It is called the happy chemical because of it involvement in making one happy. An imbalance influences the mood of an individual.
Most likely correlation
:)
It’s either
Furs and other resources OR arrows, spears and axes
Answer:
<h3>They created artificial islands on which to farm.</h3>