Question

Identify the correct pairs.

• A. The spinning of a top - Fast change
• B. Rusting of a bicycle rim - Fast change
• C. The bursting of a cracker - Slow change
• D. Growth of a child - Slow change

Answer 1

Answer: (A), (D)

The correct options are
A The spinning of a top - Fast change
D Growth of a child - Slow change

Changes that take place rapidly are called fast changes.
Changes that take place slowly (i.e. over a longer period) are called slow changes.
The spinning of a top and bursting of a cracker takes place rapidly, so we can call them fast changes.
Whereas rusting and growth take a long time to take place. Thus, these are slow changes.