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GEOGRAPHY

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The study of places and the interactions between people and their environs is known as geography. Geographers study the surface of the Earth and the various human societies that live there. The ancient Greek scholar Eratosthenes is referred to be the "father of geography." He was the first to use the term "geography," and he also possessed a small-scale understanding of the planet, which enabled him to calculate the earth's diameter. Eratosthenes was a multi-talented individual. As the Greek philosopher and explorer Herodotus showed in the fifth century B.C, knowledge was amassed about such novel and exotic locales. That knowledge came to be known as geography, a term first used in the third century B.C. as the title of Eratosthenes of Cyrene's book Geographica. Table of contents THE BIG BANG THEORY STAR THE SOLAR SYSTEM MEMBERS OF THE SOLAR SYSTEM UNIVERSE The universe is commonly defined as the totality of everything that exists,including all physical matt...
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Interpretation of earthquake

 <Earthquake >

Earthquake are the one of greatest effective natural disaster which cause of my loses of life and property Every years,around the world.In simple word,earth-quake mean shaking of the earth.


Table of contents




<CAUSES>

➡️ All natural earthquake take place on the lithosphere which is  the position depth approx 200 kilometres from the surface of earth.

➡️ It is cause due to release of energy which generated the wave  that travel in all direction.e.g-please see blog page all wave knowledge.

➡️ The Release of energy occurs along a fault which is the sharp break in the crustal rocks.

 <Earthquake wave>

Basically,earthquake waves are two types:

➡️ Body wave

➡️ Surface wave

➡️ Body wave are generated due to the release of energy at the focus and move in all the direction of body of earth.Hence,as named as body wave.

➡️ Body wave interact with the surface rocks and generate new set of wave called surface wave.

                       The velocity of waves changes as they travel through different materials with different densities. 


< MODE OF EARTHQUAKE >

➡️ The most common known as "Tectonic earthquake" due to sliding of rocks along a fault plane.

➡️ Sometimes the roofs of underground mine collapse cause minor premise in minor activity area is called collapse earthquakes.

➡️ Earthquake that occurs in the area of large reservoir  are refer to as induced earthquakes.

➡️ Ground shaking may also occur due to explosion of the chemical or nuclear device as known explosion earthquakes.


<EFFECTS OF EARTHQUAKE>

Earthquake is a natural hazard.The following are the intermediate hazardous effect of the  earthquake:

➡️ Ground shaking

➡️ Land and mud slides

➡️ Soil liquefaction

➡️ Ground Lurching

➡️ Structural collapse 

➡️ Falling objects

➡️ Tsunami



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