<span>Consider a female firefly that produces pheromones, which in turn cause males of the same species to fly toward her. in this scenario, the male would be the receiver and the female the sender.</span>
Answer:
I Think this answer will help
Explanation:
Soda ash/sodium hydroxide injection
This treatment method is used if water is acidic (low pH). Soda ash (sodium carbonate) and sodium hydroxide raise the pH of water to near neutral when injected into a water system. Unlike neutralizing filters, they do not cause hardness problems in treated water.
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