With earths core being very very hot it is plasma which is lava but its comes closer to the surface and cools downs to become a solid.
Answer:
It's just an island, it can't have a measureable impact on the environment within a hundred years.
Minerals can be classified as many things such as...idealizes,sulfates, silicates,carbonates,sulfides and oxides
Hills are easier to climb than mountains. They are less steep and not as high. But, like a mountain, a hill will usually have an obvious summit, which is its highest point. According to the U.S. Geological Survey, there is no official difference between hills and mountains.
