Earthquake is the abrupt movement of the crust of the earth. It begins naturally under the surface. The two main causes of the earthquakes are the Tectonic activity linked with… Read more »

The whole of the earth consisted of a single piece of land which later broke into pieces and that is why we have the seven continents at presents. The earth… Read more »

The surface of the earth is made up of large plates which we call the continents. These plates float on the sea of molten rock which is called Magma.  It… Read more »

Tides are generated because of the gravitational pull which is generated because of the moon’s rotation around the earth and earth’s rotation around the sun. However the pull of moon… Read more »

Tsunami is a Japanese word meaning ‘harbour waves.’ Tsunamis should not be confused with tidal waves. They are totally different from them. Scientists call Tsunamis as the seismic sea waves…. Read more »