Candidates should be able to:
1 state that modern land farming techniques
increase food production through the use of
fertilisers to improve yields
2 state that fertilisers may be water soluble and
run off into the ocean
3 describe the effect of fertilisers on the marine
environment
4 state that untreated sewage released into the
oceans can lead to eutrophication
5 explain the process of eutrophication of water
From the IGCSE Biology syllabus: (my version)
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