Question

Study the picture. Identify the rocks formed in the case of A, B, and C. Give reasons to support your answer.

Answer 1

A: Extrusive Igneous Rocks
Reason: Formed when lava cools and solidifies on the earth’s surface after a volcanic eruption.

B: Intrusive Igneous Rocks
Reason: Formed when magma cools and solidifies slowly inside the earth’s crust, producing coarse-grained rocks.

C: Intrusive Igneous Rocks (Sills)
Reason: Formed when magma pushes between layers of existing rock and cools horizontally within the crust.

This matches the type of labelled diagram question in your textbook with the explanation given for parts A, B and C.