Paheli noticed water being pulled up by a motor-pump to an overhead tank of a five-storeyed building. She wondered how water moves up to great heights in the tall trees standing next to the building. Can you tell why?
The reason behind the transport of water to greater heights in tall plants is the suction force created by transpiration.
When water is lost by the plants through leaves by transpiration, it creates a sucking or suction pressure in the plants, due to which the absorption of water in the roots is enhanced and the absorbed water is carried or pulled upwards. It is a very strong force.