Question

this diagram shows rock formations forming. which statement describes one or both formations? ○ formation 2 is an extrusion. ○ formation 1 is an intrusion. ○ formations 1 and 2 are faults. ○ formations 1 and 2 are igneous rock.

Explanation:

• Option 1: Formation 2 is an intrusion (not extrusion, as extrusion is above the surface), so this is wrong.
• Option 2: Formation 1 is an extrusion (reaches the surface), not an intrusion, so this is wrong.
• Option 3: Faults involve rock movement along a fracture, but these are igneous formations (magma - related), not faults, so this is wrong.
• Option 4: Both Formation 1 (extruded magma, like lava flow) and Formation 2 (intruded magma, cools below or within layers) are formed from magma cooling, so they are igneous rocks.

Answer:

Formations 1 and 2 are igneous rock.