IELTS Reading detail Practice

One of the main reasons for the popularity of Reverse Osmosis is its lower energy use and therefore ____.

Question type: sentence completion · Difficulty: beginner

1. A. faster process
2. B. greater flexibility
3. C. lower operational costs
4. D. simpler design

Explanation Preview

Paragraph D connects lower energy use directly to cost, stating 'modern RO plants use far less than MSF plants, which directly translates into lower operational costs.'

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