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प्रश्न
Distinguish between Earthquakes and volcanoes.
उत्तर
Earthquakes | Volcanoes | |
1. | An earthquake occurs when the tension in the normal movements within the earth's crust increases, leading to massive waves creating trembling on the earth's surface. | Volcanoes form when tectonic plates collide, pushing one plate beneath another. Tectonic plates also move away from one another to produce volcanoes. Hot magma rises from the mantle at mid-ocean ridges, separating the plates. This molten rock then rises and erupts on the surface, building up a volcano. |
2. | Earthquakes are difficult to predict because of the random pattern in their occurrence. | Volcanoes are easier to predict as eruptions of varying rates precede their formation. |
3. | Earthquakes originate from deep within the earth's mantle | Volcanoes are surface features. |
4. | Earthquakes only lead to destruction. | Volcanoes may cause the formation of the new crust as magma ejected from a volcano cools down to from new surfaces. |
5. | Earthquakes will typically nor produce significant debris but debris will result from the disturbances caused by the earthquake. | Volcanoes can produce significant debris through ashfalls, mudslides, etc. |
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संबंधित प्रश्न
Give geographical reason.
Volcanic eruptions can cause earthquakes.
Write an answer to the following question in your own words.
Explain the effects of a volcano.
The narrow pipe through which magma flow out is called a ______.
Magma rises to the surface and spreads over a vast area is known as ______.
The opening of the Volcano is usually ______ in form.
The semi-molten state of interior earth is called ______.
What is a caldera?
People who study volcanoes are called ______.
Barren Island is situated in the ______.
Consider the following statement and choose the appropriate answer:
Statement 1: Many volcanoes of Mexico and Central America are cinder-cone volcanoes.
Statement 2: Shield volcano is also called a stratovolcano.