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) Filtration and sedimentation (c) Effluent (iii) Settled solids (d) Primary sludge (iv) Liquid waste after treatment
Choose the correct matching:
a-ii, b-i, c-iv, d-iii
a-i, b-ii, c-iii, d-iv
a-ii, b-iv, c-iii, d-i
a-iii, b-i, c-ii, d-iv
Correct Answer
Detailed Explanation
In sewage treatment, primary treatment involves physical removal of particles through filtration and sedimentation (a-ii), while secondary treatment involves aeration tanks (b-i). The effluent is the liquid waste after treatment (c-iv), and the primary sludge consists of settled solids (d-iii).
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