Q: Which one of the following is NOT a chemical change?
(a)Burning of coal
(b)Rusting of a metal
(c)Melting of ice
(d)Reaction of an acid with a base
Correct Answer: (c)
The correct answer is (b): Rusting of a metal. Subject: Geography | Sub-topic: Economic & Mineral Geography Note: This answer was determined through AI-based research. Verify against the official answer key when available.