Question

3. Give an example for each of the following. [4]

a) Slow & fast changes.

b) Reversible & irreversible change.

c) Periodic & Non periodic change.

d) Desirable & Undesirable change. ​

Answer 1

Answer:

a) fast change = burning of paper

slow change = rusting of iron

b) Reversible change = melting of ice

irreversible change = burning of wood

c) periodic change = rotation of earth

Non periodic change = moving of air

d) Desirable change = ripening of fruit

Undesirable change = spoiling of food