Submitted by examrobotsa on Mon, 05/05/2014 - 22:07 Assertion: When a piece of rock is brought from the moon to the earth, its mass changes. Reason (R) : The gravitational pull of earth is stronger than that of moon.Both A and R are true, and R is the correct explanation of A. Both A and R are true, but R is not the correct explanation of A.A is true, but R is false.A is false, but R is true. stats: 0,1240,1416,1080,272,64,1240