Question

Q1) a) Fill in the blanks:- i) The molecules of a solid ___________ about their mean position. ii) Rusting of iron is an example of __________ change. iii) The fixed temperature at which a solid changes into liquid state is called _________. iv) The changes that are harmful to human beings are called ____________ changes. v) The force of attraction between different kinds of molecules is called_______ force.​

Answer 1

Explanation:

1. oscillation
2. chemical change
3. melting point
4. anthropogenic change
5. adhesive forces