Nitrogen cycle, minerals and eutrophication - CCEA

1

Which process happens against a concentration gradient?

2

Which mineral is needed for chlorophyll production in plants?

3

What do nitrogen-fixing bacteria do?

4

Why do plants need nitrates?

5

What do nitrifying bacteria do?

6

Which substances contain nitrogen?

7

What is the cause of eutrophication?

8

What do decomposing bacteria use oxygen for in eutrophication?

9

Why is fertiliser added to soil after a crop harvest?