IELTS reading main_idea Practice

Choose the correct heading for paragraphs B, C, D and E from the list of headings below. Which heading best summarizes Paragraph B?

Question type: matching headings · Difficulty: beginner

1. A. A modern approach using pressure and membranes
2. B. Key benefits making new technology popular
3. C. The high energy cost of early desalination techniques
4. D. A national case study in water independence

Explanation Preview

Paragraph B discusses early thermal methods like Multi-Stage Flash (MSF), stating they 'are extremely energy-intensive' and had 'very high operational costs'. This directly corresponds to the idea of a high energy cost for early techniques.

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