(a)[2]
State the balanced chemical equation showing aerobic respiration by yeast.
(b(i))[3]
Suggest and explain which crop would be the best choice to cultivate for producing biofuel in Uruguay. Use the information in Table 5.1 to support your answer.
(b(ii))[3]
Describe how the absence of nitrate ions would influence sugar cane production.
(b(iii))[1]
Convert the biofuel production from algae into GJ per ha. Space for working.
(b(iv))[3]
Suggest why people who care about the environment would prefer countries to make more biofuel from algae rather than the crops listed in Table 5.1.
(c)[2]
Define the term sustainable development.