Stone and copper were used in

Q. Stone and copper were used in

(a) Chalcolithic age

(b) Neolithic age

(c) Mesolithic age

(d) Paleolithic age

Ans: (a) Chalcolithic age

Explanation: The correct answer is (a) Chalcolithic age.

The Chalcolithic age, also known as the Copper Age, is the period characterized by the use of both stone and copper tools and artifacts. It is a transitional period between the Neolithic age (characterized by the use of stone tools) and the Bronze Age (characterized by the use of bronze tools).

During the Chalcolithic age, people began experimenting with metalworking and started using copper for tools and weapons. However, stone tools were still prevalent and continued to be used alongside the early copper implements.

Therefore, the correct answer is option (a) Chalcolithic age.