Multiple choice

When the fiery molten magma coming out from the interior of earth on its surface and becomes solid, it becomes ___ rock.

  1. Intrusive igneous crust

  2. Extrusive igneous rock

  3. Metamorphic rock

  4. Sedimentary rock

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When molten magma reaches the Earth's surface (where it is called lava) and cools down rapidly, it forms extrusive igneous rocks, such as basalt. The prefix 'ex-' indicates that the cooling occurs on the exterior surface.