Question

Magma that reaches Earth’s surface and flows from volcanoes?

1. igneous rock
2. extrusive
3. intrusive
4. lava

Answer 1

The only one which is not true is intrusive..

Explanation:

1. All magma turns into igneous rocks. It doesn't matter if the magma reaches the surface as extrusive rocks like lava, obsidian,pumice or as intrusive rocks like granite. All magma forms igneous rocks ( rocks formed by fire)
   So 1 is true.

2. extrusive means that the magma has been extruded from the mantle to the surface of the crust. So magma that reaches the earth's surface from volcanos or fissures, is extrusive.
   So 2 is true.

3. intrusive means that the magma did not reach the surface. iSome magma does not reach the surface. Granites are intrusive rocks that from beneath the earth surface due to volcanic 3 .
   So 3 is false.

4. lava is a common name for the magma that flows out from a volcano. pumice is more often shot out of the volcano.
   so 4 is true.