Reading answers with explanations

IELTS · Part 1 · Cambridge 11 — Test 1

Crop-growing skyscrapers: Reading answers

Answers to questions 1–13 (13 in all), each with why it is right.

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The passage opens

By the year 2050, nearly 80% of the Earth’s population will live in urban centres. Applying the most conservative estimates to current demographic trends, the human population will increase by about three billion people by then. An estimated 109 hectares of new land (about 20% larger than Brazil) will be needed to grow enough food to feed them, if traditional farming methods continue as they are practised today. At present, throughout the world, over 80% of the land that is suitable for raising crops is in use. Historically, some 15% of that has been laid waste by poor management practices. What can be done to ensure enough food for the world’s population to live on ? The concept of indoor…

Answers 1–13

  1. 1

    Some food plants, including ____________ , are already grown indoors.

    tomatoes Summary completion

  2. 2

    Vertical farms would be located in ______ , meaning that there would be less need to take them long distances to customers.

    urban centres Summary completion

  3. 3

    Vertical farms could use methane from plants and animals to produce _______ .

    energy Summary completion

  4. 4

    The consumption of ______ would be cut because agricultural vehicles would be unnecessary.

    fossil fuel Summary completion

  5. 5

    The fact that vertical farms would need ______ light is a disadvantage.

    artificial Summary completion

  6. 6

    One form of vertical farming involves planting in ______ which are not fixed.

    trays Summary completion

  7. 7

    The most probable development is that food will be grown on ______ in towns and cities.

    rooftops Summary completion

  8. 8

    Methods for predicting the Earth's population have recently changed.

    NOT GIVEN True / False / Not Given

  9. 9

    Human beings are responsible for some of the destruction to food-producing land.

    TRUE True / False / Not Given

  10. 10

    The crops produced in vertical farms will depend on the season.

    FALSE True / False / Not Given

  11. 11

    Some damage to food crops is caused by climate change.

    TRUE True / False / Not Given

  12. 12

    Fertilisers will be needed for certain crops in vertical farms.

    FALSE True / False / Not Given

  13. 13

    Vertical farming will make plants less likely to be affected by infectious diseases.

    TRUE True / False / Not Given

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