Water Pollution Answers

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Changing your toilet can reduce water pollution because _______.

the sewage is partially treated in the toilet before entering the sewer system

chemicals added by new toilets neutralize the pathogens in the water

more efficient plumbing uses more water and creates larger volumes of waste

more efficient plumbing uses less water and creates smaller volumes of waste

Which of the following best describes pollution discharged by cruise ships?

Cruise ships only discharge sewage and liquid wastes.

Cruise ships discharge sewage, solid, liquid, and air pollution.

It is illegal for cruise ships to discharge untreated sewage in the ocean.

Cruise ships do not discharge oil or petroleum waste.

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