A. soften the water
B. filter the water
C. decolorize the water
D. destroy the germs in the water
E. coagulate colloidal particles in the water
Correct Answer:
Option B – filter the water
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![A cannon is fired from town X; after how long is the sound heard at a town Y 4.95km away? [velocity of sound in the air = 330 ms−¹1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A cannon is fired from town X; after how long is the sound heard at a town Y 4.95km away? [velocity of sound in the air = 330 ms−¹1]")