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The Main Solutions to To Water Supply Problems Are

Question 17

Multiple Choice

The main solutions to to water supply problems are


A) legislation to prohibit watering lawns and washing cars
B) legislation to prohibit private swimming pools and golf courses
C) convert hydrogen and oxygen to water as follows 2H2 + O2 → 2H2O
D) clean up water which has already been used, bring in water from somewhere else, or use less

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