Question

which is more polluted water river, well, hand pump

Answer 1

The answer is Option A) river.

A river is the more polluted water source. There are many reasons why a river gets polluted. Two main reasons are given below.

*Humans tend to dump rubbish like empty snack packets, bags, bottles, cans and more.

*Fertilizers used in plants tend to get washed off by the rain and drain into the river. They cause the algae to multiply and grow at a fast rate. The growth spurt of algae called eutrophication triggers pollution.

Answer 2

The answer to this question is 'River Water' .

Reasons:
1. Many factories are built near river so that they can use water from the river but in return, these factories put the water containing chemicals back into the river, thus making river water polluted.
2. Farmers use pesticides and fertilizers for healthy growth of their crops but these pesticides and fertilizers washed through the soil by rain and end up in rivers. 
3. Many towns and societies are also built near rivers. They use river water but people sometimes become careless and through rubbish, garbage and even human wastes into the rivers and thus make river water harmful to use.
On the other hand, well and hand pump water are comparatively more safe to use as they are not directly effected by pollution.