Manya wanted to perform the treatment of polluted water at home. According to you, what should be the order of these steps to purify the water.
1. Sedimentation 2. Aeration 3. Sieving 4. Decantation
4 - 1 - 3 - 2
2 - 1 - 3 - 4
1 - 3 - 4 - 2
3 - 1 - 4 - 2
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go