Cranfield University

Fertilisers - Quiz

Answer each question below, then choose Check answers to see your score. You can reveal the correct responses after marking.

1 Why have farming methods changed over the centuries?

We have learned much more about how to grow crops We ran out of flint for tools The soil is much better now than it was

2 Does the growth of the population affect farming methods?

We can survive by eating wild plants, so not really Not at all Yes, we need more food

3 The soil can regenerate its fertility...

By converting dead plant and animal matter into humus If we grow the same crop every year in the same place If we have lots of rain

4 Artificial fertilisers help the farmer by...

Giving them something to do Making farm animals very big Providing extra nutrients for the soil

5 Farmers have large combine harvesters...

To help harvest the increased crops For the fun of driving them As an excuse to remove hedgerows

6 Organic fertilisers are...

Animal waste from livestock farms Garden compost Both the above

7 The use of artificial fertilisers...

Has doubled in the last 50 years Has increased by fifteen times Has increased by thirty times

8 Most artificial fertilisers contain...

Most of the chemicals from the school science lab Nitrogen, phosphorus and potassium Hydrogen and oxygen

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