Answer:
Serotonin is an important chemical and neurotransmitter in the human body. it is believed to help regulate mood and social behavior, appetite and digestion, sleep, and memory
no direction
because its electric so there is no smoke produced
if someone is smoking the it will move in south direction xD
Answer:
Explanation:
Plants use carbon and release oxygen, and animals release carbon and use oxygen.
Answer:
2: Amount of precipitation, average temperature
3: Desert
4: The tundra
5: All of the above
