Answer the following questions in brief.
Define the epicentre of an earthquake.
How is Mercalli Scale different from Richter Scale?
c. What is a fissure eruption?
What is the significance of volcanoes?
imples each of old fold mountains and young fold mountains.
e. Give two examples each of old fr
Answer the following questions in detail.
Write a short note on the Theory of Plate Tectonics.
h What are exogenetic and endogenetic forces?
de certain movements lead to the formation of fold mountains?
c. How do certain m
d. How is a volcano formed?
e Write a short note on the Haiti earthquake of 2010.
Answers
Answer:
Answer no. 1: The point on the earth's surface vertically above the focus is called epicentre.
Answer no.2: The mercalli scale describe the intensity of an earthquake based on its observe facts and Ritcher scale describe the magnitude by measuring the seismic waves that causes the earthquake.
Answer no. 3: The emergence of lava from a fissure in the ground rather than from volcanic cone or vent OR Eruption in any volcano can take place into two ways silent eruption which is known as fissure eruption and violent eruption.
Answer no. (H) : Endogenic force: These forces act in interior of earth.
Exogenic force : These forces , which work on surface of earth.
Answer no.(D) : Volcano are formed when magma from within the earths upper mantle work its way to the surface. At the surface , it erupts to form lava flows and deposits ashes .
hope its help you...
mark as brainleist.....