Earth science

Stratum

It was carried, and the rock which became fragile deposited in the river mouth as action によってれき, sand, mu ...

Outbreak and cause of the earthquake

On the surface of the earth, the plate which is the layer of the board-forme ...

Igneous rock

The rock which igneous rock … magma got cold, and hardened. I get cold, and the igneous rock is div ...

Volcano

There is it in the basement of the magma … volcano and is the high temperature material which a rock dis ...