Question

Assertion (A):-The lithosphere is broken into number of plates.
Reason(R):- Plates are broken because of volcanic erupt
ion.
a) A is true but R is false
b) Both A and Rare true and R is the correct explanation of A.
c) A is false but R is true.
d) both A and R true but r is not the correct explanation of A
e) both A and R are false​

Answer 1

a is true but r is false

both a and b are true

Answer 2

ANSWER:-

• a) A is true but R is false is the correct option.

EXPLANATION:-

Assertion (A):-The lithosphere is broken into number of plates.

• A is True
• The lithosphere of the Earth is the rigid outermost shell of the planet which comprises the crust and upper mantle and is broken into seven or eight major plates called tectonic plates that depend on how they are formulated and many minor plates.

Reason(R):- Plates are broken because of volcanic erupt.

• R is False
• Because Plates are broken due to the heat from the mantle which makes the rocks at the bottom of the lithosphere are seldomly soft which causes the movements of the plates. These movements of the plates are called plate tectonics.

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