crude oil / fossil fuel is running out / non-renewable • allow biodiesel is renewable / sustainable demand for fuels / energy is increasing • ignore demand for biodiesel is increasing new legislation / protocols • 1 (c) (i) uses crops / land that could be used for food destroys habitats or reduces biodiversity ignore cost 1 (ii) increases the cost of food / land ignore cost of machinery / process ignore cheaper to produce biodiesel 1 [7] Q5. (a) carbon dioxide decreased (by plants / trees) allow plants / trees absorbed carbon dioxide 1 oxygen increased (by plants / trees) plants / trees released oxygen if neither of these marks awarded plants / trees photosynthesise for 1 mark 1 because coal up’ / traps / stores carbon dioxide / carbon ‘locks allow trees up’ carbon dioxide / carbon ‘locked
• crude oil / fossil fuel is running out / non-renewable allow biodiesel is renewable / sustainable • demand for fuels / energy is increasing ignore demand for biodiesel is increasing • new legislation / protocols 1 (c) (i) uses crops / land that could be used for food destroys habitats or reduces biodiversity ignore cost 1 (ii) increases the cost of food / land ignore cost of machinery / process ignore cheaper to produce biodiesel 1 [7] Q5. (a) carbon dioxide decreased (by plants / trees) allow plants / trees absorbed carbon dioxide 1 oxygen increased (by plants / trees) plants / trees released oxygen if neither of these marks awarded plants / trees photosynthesise for 1 mark 1 because coal ‘locks up’ / traps / stores carbon dioxide / carbon allow trees ‘locked up’ carbon dioxide / carbon