Question

(c) Give one example for each of the following :
1. Physical change which is irreversible.
2.Physical change which is non periodic.
3.Chemical change which is man made.
4.Chemical change which is also a fast change. ​

Answer 1

Answer:

i)melting of ice.

ii)rotation of earth.

iii)burning of paper.

iv)again burning of paper.

hope it helps.