Geography
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.
Related Questions
Give reasons for the following:
Core is working as a magnetic field.
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?
'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): The Gutenburg discontinuity is situated between Mantle and core.
Reason (R): There is a sudden change in the velocity of earthquake waves between mantle and core.
- 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.