IELTS Reading inference Practice
What was a major reason that Multi-Stage Flash (MSF) distillation was not more widely used in the past?
Question type: multiple choice · Difficulty: beginner
- A. It produced low-quality water.
- B. It could only be built on a small scale.
- C. It was too expensive due to high energy use.
- D. It required rare and difficult-to-find materials.
Explanation Preview
Paragraph B explains that MSF plants 'are extremely energy-intensive', which 'resulted in very high operational costs, making the water produced an expensive resource.' This high cost limited its use.