Answer:
absorption of oxygen
Explanation:
the others would not make sense so i think this is the answer
Cholera is caused by the bacterium, Vibrio cholerae and produces CTX (cholera toxin, choleragen)...
Answer:
pollution of water. or do you mean pollutant in which case would be like garbage or oil spills
Answer: The way an author describes or conveys a character’s traits.
Explanation:
