Question

what is the role of anomalous behaviour of water in preventing preserving aquatic life in reigonsof cold climate

Answer 1

Anomalous expansion of water refers to water's unusual ability to expand instead of contracting when cooled. In winters in very cold areas this ability causes water to form a layer of ice above the lakes/rivers/oceans. This layer of Ice acts as an insulation and prevents heat from escaping the water and the cold outside from coming inside the water. Thus, it helps in survival of aquatic animals and fishes.