Changing your toilet can reduce water pollution because a. the sewage is partially treated in the toilet before entering the sewer system b. chemicals added by new toilets neutralize the pathogens in the water c. more efficient plumbing uses more water and creates larger volumes of waste d. more efficient plumbing uses less water and creates smaller volumes of waste

Answer;

-More efficient plumbing uses less water and creates smaller volumes of waste

Explanation;

-Changing your toilet can reduce water pollution because more efficient plumbing uses less water and creates smaller volumes of waste. If there is a problem in your toilet, you will use more water. Thus, the more water you pour, the more water pollution is added.

-Additionally, to reduce water pollution it is important not to dispose off household chemicals or cleaning agents down the sink or toilet, And also not to flush pills, liquid or powder medications or drugs down the toilet. Avoid using the toilet as a wastebasket.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

the answer is d p: cell, q: organ, r: organ system, s: tissue