প্রাকটিস শুরু করতে এবং প্রগ্রেস ট্রাক করতে লগইন করো।
Water is a liquid substance.
It is used for various purposes in our daily life.
We drink water to satisfy our thirst.
We get water from many sources.
Surface water is not safe for drinking.
We should drink tube-well water.
Polluted water is very dangerous for our life.
If we throw wastage and dirts into water, we make it polluted.
Pure water is one of the most valuable things for our lives.
Who can live without water?