The general pattern of layered changes in soil with depth is called (1 word)

The general pattern in changes in the layers of soil with depth is called Soil Horizon

Explanation:

The layer of soil present parallel to the surface, having different chemical physical and biological properties from the layers that are present above and below it, is known as the soil horizon.

The difference in the properties of the layers of soil can be the texture of the soil, color of the soil, particle size of the soil etc.

doctrine that the us had the right to expand throughout north america.

a and b because with the other three, they simplify to something else.