During photosynthesis, carbon dioxide reacts with one other raw material taken up from the soil to produce glucose and oxygen. Name that raw material.
Model answer
water
Also accepted: H2O, water (H2O)
Explanation
Carbon dioxide from the air and water from the soil are the two raw materials of photosynthesis. Their carbon, hydrogen and oxygen are built into glucose, and the surplus oxygen is released.
Derived from ZIMSEC Combined Science 4003/2, June 2019, Q1(b)