Cranfield University

Impacts on biodiversity - Quiz

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

1 What does soil biodiversity mean?

It's a university for earwigs! It describes the variety of life below ground It's a sort of washing powder

2 How many organisms are there in a spoonful of good garden soil?

More than the number of people on the planet About one million About 200,000

3 Can bacteria live in the soil?

Yes No

4 What is the 'food chain'?

All the different inter-dependent creatures living in the soil A line of ants carrying food to their nest Any well-known supermarket

5 What is 'humus'?

A sort of Tunisian food Broken-down plant material, rich in organic matter The way plant nutrients are broken down

6 Which creatures first begin to break down fallen leaves?

Larger soil fauna e.g. earthworms, mites Hedgehogs Snails and Ladybirds Bacteria

7 Will the biodiversity be the same whatever the soil-type?

No, it can vary, e.g. between forest and meadow Yes - biodiversity is a constant everywhere

8 Do we understand the roles of the different species in the soil?

We mostly understand We know nothing We know ALL there is to know!

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