Fill in the blanks :
(a) The process of a liquid changing into a solid is called_______________
(b) A change which alters the composition of a substance is known as a _______________ change
(c) There is no change in the ____________of the substance during a physical change.
(d) The reaction in which energy is evolved is called_______________
Question 8
The outermost layer of the earth is called (a) mantle (b) outer core (c) crust (d) inner core