Earthquakes
Earthquakes
Earthquakes: An earthquake is a sudden movement or a fracture in crust and the upper layer of the mantle.
The internal structure of the Earth:
Crust: Crust is the thin outer covering of the earth.The crust is thinner at the ocean floor(about 6-11 km) than under the continents (about 30-70 km).
Outer core: Outer core is about 2300 km thick. It is believed to contain iron and nickel in a molten state. There is also some sulphur present here.
Mantle: Mantle is the layer immediately beneath the crust. It is about 2900 km thick and consists of semisolid rock, iron, magnesium, and calcium.
Inner core: Inner core is about 1200 km thick. It is believed to be composed alomost entirely of solid iron.
The branch of science concerned with earthquakes and related phenomena is called seismology.
Plate Tectonics: Earth’s lithosphere is not one continuous piece, but is broken into many pieces called plates. The earth is divided into seven large plates and several smaller plates. These plates move with respect to one another by about a few inches every year. The theory that the surface of the earth is made of plates that move with respect to one another is called plate tectonics.
_________ are huge waves created when an earthquake happens under the sea. | |||
| Right Option : A | |||
| View Explanation | |||
Movement of the tectonic plates leads to ________________ | |||
| Right Option : B | |||
| View Explanation | |||
Earthquake foci are _______________ | |||
| Right Option : C | |||
| 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 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
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Shivam Rana
7thIt 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 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
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.
Archit Segal
7thAbout 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 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
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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.
