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.
Mining occupation is well developed on the Chotta Nagpur plateau because of ____________ | |||
| Right Option : B | |||
| View Explanation | |||
A period of the Earth's geological history in which 98% of Indian coal was formed is _______________________ | |||
| Right Option : A | |||
| View Explanation | |||
In India, Gold is extracted by the method of __________________ | |||
| Right Option : B | |||
| 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
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.
Prisha 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
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
7thMy 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
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 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
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 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
10thA 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.
