Water absorption through roots can be increased by keeping the plant:
1. In the shade
2. In dim light
3. Under the fan
4. Covered with polythene bag
Water travels up from the roots to the leaves due to a pressure gradient formed when transpiration occurs.
- When the plant is kept under a fan, its rate of transpiration increases .
- This leads to an increase in the suction or upward pull which is created as a result of transpiration
- Thus the rate of water absorption by roots is increased .
So, the correct answer is (C).