1. The outermost layer of the earth is made up of two basic rock type; granite and basalt.
2. The only astronomical object known to have life.
3. The region beyond earth's atmosphere.
4. A type of plate boundary that exist between two plates that are moving towards each other.
5. The whole body of salt water that covers nearly % of the earth's surface. 6. A type of plate boundary in which the plates slide past each other.
7. A type of plate boundary that exist in between two plates that are moving away from each other.
8. A vent or fissure in the planet's crust though which lava ash rock and gases erupt.​