I don’t think we would have the same countries. i feel like everything would be connected, like maybe a few really big countries instead of hundreds of different countries. i feel we would look different that how we already look because there would be more of different type of people around each other, resulting in mixed race reproducing.
Marble and slate are examples of impermeable rocks.
Therefore, it is called a solvent, because it <span>is the one doing the dissolving.
The opposite - </span>a substance being dissolved is called a solute.