Environmental Science for AP* (2nd Edition)

Published by W. H. Freeman
ISBN 10: 1464108684
ISBN 13: 978-1-46410-868-6

Chapter 14 - Working Toward Sustainability - Critical Thinking Questions - Page 511: 1

Answer

See explanation

Work Step by Step

It's important for a water-purifying system to contain both chlorine and flocculant because they work together to make sure the water is safe to drink. Chlorine kills bacteria and other harmful microorganisms in the water. Flocculant is like a magnet that attracts tiny particles in the water, such as dirt and dust. When these particles stick together, they become bigger and heavier, so they can be easily removed from the water. When you have both chlorine and flocculant in the purifying system, you get the best of both worlds. The chlorine kills the germs, while the flocculant helps to remove the dirt and other pollutants . This way, the water becomes clean, clear, and safe for us to drink.
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