Over the last 200 years, many animal and plant species have become extinct. Fig. 8.1 shows how, from 1800 to 2000, the number of species going extinct and the size of the world human population changed.
(a(i))[3]
It has been suggested that the number of species becoming extinct is correlated with the size of the world human population. Suggest reasons that might account for this correlation.
(a(ii))[2]
Calculate the species extinction rate per year between 1950 and 2000. Show your working.
(b)[7]
Extinction of animal and plant species lowers biodiversity. Explain why biodiversity is important to maintain.
Worked solution & mark scheme
This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: “loss of habitat” …