IB ESS HL 5.2.4 Agricultural System Variation Questions

a. more water is needed when rainfall is low / less water is extracted when it rains;
b. more water is needed when (monthly) temperatures are higher (as shown in Figure 1(d)) due to increased evaporation from soil/plants;
c. (plants require more water when they are growing, so) the greater water use is during the growing season / plants require more water during photosynthesis;