I need help can anyone help me

Now that the first three steps have been explained, identify the next three steps, in order. calculate the magnitude of r sum vector components calculate a and b magnitudes calculate the direction of r, calculate x,y components step 4 step 5 step 6

Which best represents the law of conservation of mass ?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.