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Tag Archives: earthquakes

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Earthquakes: Seismographs & Technology

ScienceBy William Anderson (Schoolworkhelper Editorial Team)August 19, 20182 Comments

An earthquake is caused due to the movement beneath the earth’s surface. It is caused by the vibration of rocks and the sudden release of energy in the earth’s interior. When two tectonic plates slip past each other and pressure starts to build up at the edges, vibrations called seismic waves are created. The extent…

Our Planet: The Four Spheres

ScienceBy William Anderson (Schoolworkhelper Editorial Team)August 28, 20101 Comment

THE LITHOSPHERE The part of the earth that is made up of rocks and minerals, consists of the uppermost layers of the earth Came into being billions of years ago and still continues to change and evolve Changes to the worlds land masses, tectonic plates Volcanoes, earthquakes THE HYDROSPHERE The part of the earth made…

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