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Match water step: 1. Grey: p. Recycled 2. Low-flow: q. Taps 3. Rain: r. Harvest

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
Water efficiency in green buildings utilizes greywater recycling, low-flow plumbing fixtures, and rainwater harvesting.
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