i want class 8 . ch-eathquake and lighting notes
Answers
Answer:The effects of an earthquake are terrible and devastating. ... The environmental effects of it are that including surface faulting, tectonic uplift and subsidence, tsunamis, soil liquefaction, ground resonance, landslides and ground failure, either directly linked to a quake source or provoked by the ground shaking.
Explanation:The main causes of earthquakes fall into five categories:
Volcanic Eruptions. The main cause of earthquake is volcanic eruptions.
Tectonic Movements. The surface of the earth consists of some plates, comprising of the upper mantle. ...
Geological Faults. ...
Man Made. ...
Minor Causes.
Explanation:
The power of an earthquake is expressed in terms of a magnitude on a scale, known as the Richter Seale. Destructive earthquakes have magnitudes higher than 7 on Richter Scale. The tremors caused by the earthquake produce waves on the surface of the earth. Seismograph: It is an instrument to record seismic waves.
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