NEET Botany Sewage Treatment Match the Following Question
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Primary treatment | (i) Aeration tanks |
| (b) Secondary treatment | (ii) Sedimentation |
| (c) Effluent | (iii) Primary sludge |
| (d) Primary sludge | (iv) Cleaned water |
a-ii, b-i, c-iv, d-iii
a-i, b-ii, c-iii, d-iv
a-ii, b-iv, c-i, d-iii
a-iv, b-iii, c-ii, d-i
Correct Answer
Detailed Explanation
In sewage treatment, primary treatment involves sedimentation (removal of solids), while secondary treatment includes aeration tanks. The effluent is the cleaned water after primary treatment, and primary sludge is the solid waste that settles during the process.
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