alleryMatch sewage unit: 1. Screen: p. Debris 2. Tank: q. Aerobic 3. Pond: r. Lagoon
A1-p, 2-q, 3-r
B1-p, 2-r, 3-q
C1-q, 2-p, 3-r
D1-r, 2-p, 3-q
Answer & Solution
Correct answer: A. 1-p, 2-q, 3-r
Bar screens filter gross debris, aeration tanks support aerobic microbes, and stabilization ponds act as natural treatment lagoons.
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