What is the best way to reduce water pollution?
Cutting forest
Burning plastic
Seaways treatment
Dumping waste into river
What is the main purpose of a dam?
Road transport
Only farming
Water storage & electricity
Mining
Which ion in drinking water is harmful?
Sodium
Lead (pb)
Fluoride
Chlorine
During evaporation, water changes into which state?
Why is rainwater harvesting done?
To make plastic
To generate electricity
To store water
To extract oil
Which organism grows more in polluted water?
Which of the following is a source of water pollution?
Evaporation
Industrial waste
Photosynthesis
Rainfall
What is the neutral pH value of water?
When is World Water Day observed?
22 March
10 June
5 September
15 August
Which state of matter is NOT a form of water?
