Geography
People living in Japan often are witnessed of hot fiery material comes out from the earths inside during volcanism. What is the reason that the material which comes out from inside the earth is always hot?
Answer
The temperature inside the Earth increases with depth, about 1°C for every 32 meters. In the mantle region, temperatures can reach around 2200°C. At such high temperatures, rocks melt and exist in a hot, molten state called magma. During volcanic eruptions, this extremely hot magma rises and escapes to the surface, which is why the material that comes out is always hot.
Related Questions
Give reasons for the following:
Inner core is solid although the temperature is high.
Give reasons for the following:
Core is working as a magnetic field.
'Without earth's magnetic property the solar wind would erode our atmosphere and we could be de-void of our life sustaining gases'. (space.com)
Which layer of earth is working as the magnetic field and why?Assertion (A): Sima is floating on Sial.
Reason (R): Sial is less dense than Sima.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of. A.
- A is true but R is false.
- A is false but R is true.