(a(i))[1]
State the plant organ in which most water is absorbed.
(a(ii))[1]
State the human organ in which most water is absorbed.
(a(iii))[1]
State one property of water that is useful to animals and plants.
(b)[4]
Fig. 1.1 shows a town alongside part of the water cycle in a flow diagram.
(b(cont))[4]
Complete Table 1.1. One row is already completed for you.
(c(i))[1]
State one reason why polluted water must be treated before it is used as drinking water.
(c(ii))[4]
Outline how sewage is treated. You may use the letters in Fig. 1.1 in your answer.