(a)[2]
Oil palm trees produce more oil per hectare than other oil-producing plants. Fig. 8.1 shows the oil yield of four crop plants. Calculate how many hectares of soya bean plants would be needed to produce the same amount of oil as one hectare of oil palm trees. Show your working and give your answer to one decimal place.
(b)[5]
Rainforest has been cleared to create oil palm plantations in Malaysia and Indonesia, which lowers biodiversity. Outline reasons why it is important to maintain biodiversity.
(c)[2]
Palm oil companies are now being encouraged to make palm oil sustainably. This means that no further deforestation should occur. Suggest ways in which individual consumers can encourage manufacturers to use palm oil from sustainable sources.