EVS Answer the following questions.

Enough trees must be planted in the garden so that the roots of the trees will make a mesh underground holding the soil firmly, not allowing the soil to get washed away.

Use of paver stones to make roads or foot paths is a solution, as the rainwater will then be able to seep through the joints and percolate into the soil, instead of it flowing into the drains and getting wasted.

Shampoo, soap, washing detergents, waste food particles, oil and grease from washed utensils, dirt and grime from soiled colthes.

At homes, the tap water is filtered and boiled to purify it for drinking.

1. Liquid state
2. Solid-state
3. Gaseous state.

1. When sugar is added it dissolves in water.
2. When sawdust is added it does not dissolve instead it floats in water.
3. When soil is added the stones simply sink to the bottom of the glass and the soil dissolves the water making it muddy.