I believe it is the united states
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.
Well it depends if it is flat it would be smooth and if it was smashed up it should be bumpy hope this helped
Yes, organic material in soil is more productive.
Some of the most typical characteristics of groundwater are weak turbidity, a constant temperature and chemical composition and almost overall absence of oxygen. Circulating groundwater can have extreme variation in the composition with the appearance of pollutants and various contaminants.
