Absorption of water and minerals — task. Science CBSE Homework Assignments, Class 7.

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?

Water loss through leaves creates a suction that pulls water upward.
Water and minerals are absorbed by the roots from the air.
Water and minerals are absorbed by the roots from the soil.
Water loss through root creates a suction that pulls water downward.
Water molecules stick together and to the xylem walls, helping to transport water up the tree.

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3. Absorption of water and minerals

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