Some examples would be the Silk trade or even their Food.
deciduous forest biome<span> occupies most of the eastern part of the United States </span>
This statement is true. Soil color only reflects the amount of organic matter that is currently present in the soil. If the soil seemed to be much darker, it means that the soil has a greater amount of organic materials which makes it better.
Inactive volcanoes are called dormant volcanoes. Mount (Mt.) Rainier is dormant, but may not be in the future.
Water also moves underground, in the air, and moves in larger bodies of running water.