how to write a preface on earthquake and volcanoes around world and also on geographical value.....plz help me guies....its urgent...
Answers
Iceland sits on crack in the surface of the earth where two tectonic plates (large blocks that make up the outer most layer of the earth) are ripping apart from each other. These two blocks are moving apart at around 2 cm a year (about the rate that your finger nails grow) and are slowly widening the Atlantic Ocean, increasing the distance from Europe to North America. As the tectonic plates split apart magma (molten rock) wells up from below forming volcanoes which create new land in between. This rifting process is happening all the way down the middle of the Atlantic Ocean beneath the sea. But in Iceland we see the process on land because a hot upwelling from deep within the earth also sits beneath Iceland pushing it upwards out of the sea and making the area even more volcanically active.