Effects of Pollution on Waterbodies
Effects of Pollution on Waterbodies
The polluted water affects mankind as well as plants and animals.
1. Many diseases like cholera, dysentery, measles, typhoid etc. are caused due to consumption of polluted water.
2. The polluted water enhances the growth of algae and water hyacinth which reduces the supply of oxygen and sunlight to the aquatic fauna and flora resulting in adverse effect on their growth. This is called Eutrophication.
3. Industrial water contains compounds of mercury, cadmium, lead, arsenic, chromium etc. which are highly poisonous. They cause serious disorders of many kinds. They may cause death.
4. Flourides in water cause fluorosis which affect teeth and bones.
Soil Contamination: Soil becomes infertile due to the deposition of harmful chemicals discharged by industries. The high concentration of poisonous chemicals in soil can cause serious diseases in future generations.
Oil Spills from pipeline and tankers at sea are one of the most dangerous forms of pollution. The oil spreads very fast on the surface of water. It cuts off the supply of oxygen to the organisms living in sea and cause their death.
Soil Erosion caused by rains and floods takes all the sediment to the rivers and lakes. This results in the death of organisms living at the bottom of the lake or river thus upsetting the balance. The Dal lake in Srinagar, Nainital lake in Uttarakhand and Ulsoor lake in Bangalore are examples where silting is causing the choking of the lakes.
An oil spill covered a large area of water in an ocean. The marine life in that area was badly affected. A lot of marine animals were found dead and floating on the surface of the water. This is because _____________ .
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| Right Option : D | |||
| View Explanation | |||
Submerged algae and plants die due to _________________ | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following diseases are caused by consumption of polluted water? | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
I have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
