Question

In which of the following activities will you use minimum amount of water?

Options

• Bathing

• Brushing teeth

• Washing clothes

• Mopping a room

Answer 1

Brushing teeth

Explanation:

Let’s compare typical water usage:

1. Bathing

   • Uses a large amount of water, especially with a shower or bucket (15 – 30 litres or more).

2. Brushing teeth

   • If done carefully (e.g., by turning off the tap while brushing), it uses very little water (less than 1 litre).

3. Washing clothes

   • Requires many litres of water depending on load size and method (hand wash or machine).

4. Mopping a room

   • Uses more water than brushing but less than bathing or washing clothes.