Water pollution.its cause and effect.how to control water pollution?

Question

deases due to water pollution.

Answer 1

Causes of water pollution:

1. dirty water from the drainage in towns & cities  mixes with water sources.

2wastes, toxic chemicals from factories  are let into rivers.

3. oil spill from shipsin the sea water.

4.pesticides &fertilizers dumped in agricultural lands are washed in to the water sources due to rains & floods.

5. bathing in rivers, using soaps & detergents, washing clothes, vesels, cattle , vehicles.

6. using banks of rivers as toilets

7.throwing dead bodies especially in holy rivers

Effects of water pollution;

1. makes water unfit for drinking

2. kills the aquatic plants & animals

3.in humans causes diseases like cholera, typhoid, jaundice, amoebiosis,worm infestation'

4.people who eat fish contaminated by mercury will be affected by 'minimata'a disease which affects the nervous system especially th brain

5.heavy metals like cadmium, arsenic can lead to kidney and liver damage.

Control of water pollution:

1.separate waste materials' recycle domestic waste water

2.treating  industrialwastes & recycling the toxic materials.

3. building latrines &  bathrooms near water sources.

4. cleaning the polluted rivers & other ater resources with the help of govts., industries & the local community.

5. educating the pilgrims & common people regarding keeping the water sources clean; use sign boards & slogans.

6.fish& tortoises which act as natural scavengers must be kept in water.

7. grow trees & other plants on the banks of rivers ,lakes , they not only beautify the surroundings but also  absorb the pollutants in the atmosphere.

Answer 2

Cause of Water Pollution:

-Improper disposal of sewage

-Oil spills

Effects of Water Pollution:

-Endangering plant and animal species.

-Negative impact on human health.

-Economic loss.

How to control [Measures taken]:

-Cooperation between countries in monitoring ships and improving safety in seas.

-Enforcing laws and regulations.

-Educating the public.

-Disposing toxic chemicals properly.

Diseases: Suffer from cholera and typhoid.

Answer 3

This we have studied in middle school syllabus.

Donot abuse water. Collect rain water. recharge wells and borewells. Do not litter,discharge gutter/industrial afluents  into water bodies.

All the diseases starts frome here.