(A) : A hydrogen filled balloon stops raising after it has attained a certain height in the sky. (R ) : The buoyancy of an object depends both on the material and shape of the object.

(A) : A hydrogen filled balloon stops raising after it has attained a

1.	(A) : A hydrogen filled balloon stops raising after it has attained a certain height in the sky. (R ) : The buoyancy of an object depends both on the material and shape of the object.
Answer» 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 Both (A) and (R ) are false ANSWER :C