Food supply

20.1

What the syllabus asks of you

Describe how humans have increased food production, limited to: (a) agricultural machinery to use larger areas of land and improve efficiency (b) chemical fertilisers to improve yields (c) insecticides to improve quality and yield (d) herbicides to reduce competition with weeds (e) selective breeding to improve production by crop plants and livestock
Describe the advantages and disadvantages of large-scale monocultures of crop plants
Describe the advantages and disadvantages of intensive livestock production

Read the notes first

Chapter 19: Effects of humans on ecosystems

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Every question on Food supply, untimed, marked as you go.

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