Interior of earth,

  Most of the knowledge we have about Earth’s deep interior comes from the fact that seismic waves penetrate the Earth and are recorded on the other side.  Earthquake ray paths and arrival times are more complex than illustrated in Read More …

Origin and evolution of earth

    Beginning of the Universe started about 13.6 billion years ago,when the Big Bang created the universe from a point source. During this process, light elements, like H, He, Li, B, and Be formed. From this point in time, Read More …

Continental Drift Theory – Tectonics

  The continental drift theory is the theory that once all the continents were joined in a super-continent, which scientists call Pangaea. Over a vast period of time, the continents drifted apart to their current locations. Alfred Wegener first supported Read More …

Orogenic or the mountain-forming movements

  Orogenic or the mountain-forming movements act tangentially to the earth surface, as in plate tectonics. Tensions produces fissures (since this type of force acts away from a point in two directions) and compression produces folds (because this type of Read More …

Earth Movements – Endogenetic Movements

  The interaction of matter and temperature generates these forces or movements inside the earth’s crust. The earth movements are mainly of two types: diastrophism and the sudden movements. The energy emanating from within the earth is the main force Read More …

Earth’s Layers – Earth’s Composition

  The Crust of Earth It is the outermost and the thinnest layer of the earth’s surface, about 8 to 40 km thick. The crust varies greatly in thickness and composition – as small as 5 km thick in some Read More …

Earth’s Interior – Earthquake Waves – Shadow Zone

  Most of the knowledge we have about Earth’s deep interior comes from the fact that seismic waves penetrate the Earth and are recorded on the other side.  Earthquake ray paths and arrival times are more complex than illustrated in Read More …

JPSC Mains Paper 3:SOCIAL SCIENCES (History and Geography) Notes

Detailed Notes for JPSC Mains Paper III Notes- Detailed topicwise Jharkhand Mains GK Notes for JPSC Mains Exam are provided for free browsing. Jharkhand (JPSC) Mains Notes are designed by JPSC Toppers and other civil servants. Detail Notes can be Read More …

Jharkhand Geography- for Jharkhand PCS Exam of JPSC

Detailed Notes for Jharkhand Geography Specifically designed Notes for Jharkhand Geography can be Bought at minimum price in PDF or Printed format Geography of Jharkhand plays a crucial role in not only Jharkhand PSC Prelims Exam but even JPSC Mains Read More …