I think it’s D. H2, NaCI, CO
Find how much the fraction that is shaded and that is the answer
Answer: Genetic Tolerance
The answer is Genetic Tolerance because the definition of it is "Genetic resistance (or genetic tolerance) refers to the ability of certain organisms to endure environmental conditions that are extremely stressful or lethal to non-adapted individuals of the same species ."
Oh boy, there's many, many, many, many...
(many x100)
many ways!
One way is to take shorter showers and conserve water wherever you go, at home, at a restaurant, hotel, etc.
Another way is to not litter on the streets.
Or, spread the word and tell everyone to conserve water, not litter, or just anything to help the environment!