Mining of Minerals
Mining of Minerals
Extraction of minerals: Minerals can be extracted by mining, drilling or quarrying. The process of taking out minerals from rocks buried under the earth’s surface is called mining. Open-cast mining: Minerals that lie at shallow depths are taken out by removing the surface layer; this is known as open- cast mining.
Deep bores, called shafts, have to be made to reach mineral deposits that lie at great depths. This is called shaft mining.
Drilling: Petroleum and natural gas occur far below the earth’s surfaces. Deep wells are bored to take them out. This is called drilling.
Minerals that lie near the surface are simply dug out, by the process known as quarrying.
Coal mining in India at Raniganj in West Bengal in _______________________ | |||
| Right Option : C | |||
| View Explanation | |||
Mining occupation is well developed on the Chotta Nagpur plateau because of ____________ | |||
| Right Option : B | |||
| View Explanation | |||
In India, Gold is extracted by the method of __________________ | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [10]
Abhyas 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
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
10thIt 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
8thA 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
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
8thMy 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
7thOne 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.
Aman Kumar Shrivastava
10thAbhyas 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
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
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.
