# The Rise of Rooftop Farms: answers and explanations

Testmigo IELTS Practice

Source: Written by Testmigo.

## Answer key

| Q | Answer | Proof |
| --- | --- | --- |
| 1 | iv | Supporters point to several benefits |
| 2 | iii | the obstacles are considerable |
| 3 | i | many growers have abandoned soil altogether |
| 4 | v | The economics remain uncertain |
| 5 | TRUE | supply restaurants and grocery shops located only a few streets away |
| 6 | FALSE | helps keep the building below cooler in summer |
| 7 | NOT GIVEN | most farms depend on customers willing to pay extra for local food |
| 8 | TRUE | crops can be harvested all year round |
| 9 | roof | engineers must confirm that the roof can carry the extra weight |
| 10 | wind | Wind is another problem |
| 11 | fibre | light materials such as coconut fibre |
| 12 | A, C | rent and energy bills rose faster than sales |
| 13 | A, C | rent and energy bills rose faster than sales |

## Why these answers are right

**1. iv.** Paragraph B opens by saying supporters see several benefits, then lists them: fresher food, fewer lorries, less flooding and cooler buildings. Each benefit helps either people or the building itself, which is exactly what heading iv describes.

**2. iii.** Paragraph C turns from benefits to problems with the word however, and then describes the weight of wet soil, the cost of strengthening older buildings and the danger of wind. These are practical difficulties, so heading iii matches the whole paragraph.

**3. i.** Paragraph D explains that growers reduce weight by giving up soil and using hydroponic systems, where plants grow in nutrient-rich water. The rest of the paragraph describes how these soil-free farms work, so heading i is correct.

The why and the trap for questions 4 onwards are free with an account on the [answers page](https://testmigo.com/ielts/reading/the-rise-of-rooftop-farms/answers).

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