People say that nothing goes waste in a forest. Can you explain, how?

Soln:

Nothing goes waste in a forest for the following reasons

• Dry leaves and remains of dead animals are converted to a dark coloured substance called humus. This provides nutrients to the plants.
• Dead animals become food for vultures, crows, jackals and insects.
• Broken branches of trees are used as fuel by the people living in the vicinity of the forest.