(a(i))[1]
State the estimated final global human population shown for the 2010s in Fig. 3.1.
(a(ii))[2]
Using the data in Fig. 3.1, calculate the percentage of the estimated global human population that was affected by famine in the 1860s. Give your answer to one significant figure.
(b(i))[3]
Describe other causes that may have led to famines since the 1970s.
(b(ii))[4]
Discuss the harmful effects on the natural environment of using chemicals, other than fertilisers, in modern farming.
(b(iii))[1]
State the meaning of monoculture.
(b(iv))[1]
State the process used to develop crop plants that can produce proteins from other species.