Read the following excerpt: 'Desalination facilities supply over 90% of Kuwait's potable water. However, thermal multi-stage flash distillation consumes substantial fuel oil. In response, modern engineering initiatives are prioritizing reverse osmosis membranes powered by solar photovoltaic arrays to decouple water security from carbon emissions.' What is the implicit relationship between solar reverse osmosis and carbon emissions?

Answer and explanation

Correct answer: D. Solar reverse osmosis decreases carbon emissions by replacing fossil fuel combustion with clean solar power

  1. Step 1: The text states that traditional thermal distillation consumes fuel oil, whereas solar reverse osmosis is designed to 'decouple water security from carbon emissions'.
  2. Step 2: 'Decouple' means to separate; replacing fuel oil with solar arrays eliminates combustion of hydrocarbons in the water generation cycle.
  3. Step 3: This establishes that solar reverse osmosis reduces carbon emissions.
Answer
Solar reverse osmosis decreases carbon emissions by replacing fossil fuel combustion with clean solar power.
Why not the others: 'Reverse osmosis increases carbon emissions' contradicts the goal of decoupling; 'Carbon emissions are required' is factually and contextually false; 'Solar energy cannot be applied' contradicts the explicitly stated engineering initiative.

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