Natural Resources — Science STD 9 — Question

Biological (water) cycle refers to the continuous movement of water through living organisms and the environment.
Main points:
1.Absorption & Use – Plants absorb water from soil; animals take water through drinking and food.
2.Transpiration & Respiration – Plants release water vapour through transpiration; animals give off water vapour during breathing and sweating.
3.Return to Environment – Water vapour condenses to form clouds and falls back as rain, replenishing soil and water bodies.
Thus, water is continuously circulated between living organisms and nature.