A. large particles
B. germs
C. fine particles
D. odour
Correct Answer:
Option A – large particles
In the course of purifying water for town supply the water is passed through large settlings tanks: containing sodium aluminate (III) to remove?
![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]")
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