Effects of Manure and Fertiliser on Soil
Effects of Manure and Fertiliser on Soil
Effects of Manure and Fertilizers on the Soil:
We know that soil provides the most suitable base for agriculture. By the repeated growing of plants, the essential nutrients get depleted in the soil and hence the fertility of the soil is reduced considerably. The excessive use of chemical fertilizers degrades the quality of the soil in the long run. This also leads to water pollution. For example, excessive use of nitrogenous fertilizers makes the soil and water rich in nitrates. Such water becomes unsuitable for drinking. Besides, when this water flows into rivers, lakes and ponds nearby, it encourages the prolific growth of algae and thereby reduces the amount of oxygen dissolved in water. Such water then becomes unfit for the survival of aquatic life. This process is called eutrophication.
Which of the following are correct : (a) Manure is formed from the decomposition of the organic material like dead plants and animals. (b) Manure is good for the soil health as it improves the soil fertility. | |||
| Right Option : C | |||
| View Explanation | |||
When water containing nitrates flows into rivers nearby, it encourages the prolific growth of algae, reduces the amount of oxygen dissolved in water which becomes unfit for the survival of aquatic life, this process is called __________________. | |||
| Right Option : C | |||
| View Explanation | |||
_______________________ is formed from the decomposition of the organic material like dead plants and animals. | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy 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
7thMy 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
8thAbout 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
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt 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
10thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thMy 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
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
10thBeing 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.
