Question

During extreme winters, water bodies such as lakes and rivers freeze forming a layer of ice on their top surface. How do fish and other aquatic animals manage to survive under such conditions?

Answer 1

1. Only the top layer of the lake or river freezes.
2. Underneath the frozen upper layer, the water remains in its liquid form and does not freeze.
3. Also, oxygen is trapped beneath the layer of ice.
4. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen lakes and ponds.