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Geomorphology: Mountains

NOTE: Magma is molten rock below Earth's crust. Lava is magma that has reached the earth's surface. A mountain is a large landform that stretches above the surrounding land in a limited area, usually in the form of a peak. Types of mountains: 1. Fold Mountains: They are formed when two continental plates or one continental and one oceanic plate move towards each other at a convergent plate boundary. When the two plates collide the sedimentary deposits along the edges of Continental plates are forced to fold and hence folded mountains are formed. e.g. Himalyas. 2. Block mountains: They are formed due to faulting. They are not true mountains as they are formed by differential settlement of land mass. There is no actual upliftment taking place as in case of fold mountains. Middle part of any land mass gets  lowered resulting into relatively raising of adjoining landmasses or Lowering of landmasses on either sides resulting into relatively raising of middle landmass. ...
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Tribes in India(Tricks to remember Tribes in India)

1. Andhra Pradesh: Andh, Sadhu Andh, Bhagata, Bhil, Chenchus, Gadabas, Gond, Goundu, Jatapus, Kammara, Kattunayakan, Kolawar, Kolam, Konda, Manna Dhora, Pradhan, Rona, Savaras, Dabba Yerukula, Nakkala, Dhulia, Thoti, Sugalis.  Trick to remember: Andhere Pradesh mein ek Nayak ki jaroorat hai. Jackie Chen(chenchus) Nayak( Kattunayakan) hai. Wo ek village se Sugandha(sugalis)  ko Kundi (konda) todkar horse pe Savari kar k Bhaga(Bhagata)  le gya to Village k Pradhan ne War(kolwar) shuru kar di kyuki Jackie Chen dusri Jati (Jatapus) k hai. Raste mein Jackie Chen ko ek Andha Sadhu   Dhoti (Thoti) pehne hue Dhul  (dhulia) mein gira hua milta hai. Andhe Sadhu ki kamar(Kammara)  mein dard tha jiski wajah se wo RONe  (Rona) laga. Jackie Chen ne apne DABBe (Dabba Yerukula) mein se  Bhel Nikal( Bhil, Nakkal)  kar Sadhu ko  khane ko di. Badle mein Sadhu ne Jackie Chen ko ek Kalam  (Kolam) gift ki aur  Mann(Manna Dhora) me...
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Universe and the Earth: Universe consists of millions of Galaxies. Galaxy is a gravitationally bound system of solar systems, stars, stellar remnants, interstellar gas, dust and dark matter. The name of our Galaxy is Milky Way Galaxy. Age of Universe is said to be 13.7 billion years. Structure of Universe: 1. Galaxy: Large group of many Solar Systems. On basis of shape there are 3 type of galaxies:  i. Spiral  ii. Elliptical  iii. Irregular. 2. Solar System: Solar system is the collection of 8 planets, asteroids, kuiper belt, dwarf planets, meteoroids, comets and interplanetary dust with Sun at the centre. There are mainly 3 theories regarding origin of Universe: 1. Big bang theory: It was proposed by George Lemaitre. According to this theory the Universe is formed due to the expansion of a hot, condensed single point called 'point of Singularity'. Initially the Universe permeated energy. Some of this energy is transformed into particles like Hydroge...
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