Which is characteristic of soil horizons?

A. Boundaries between soil horizons are usually transitional rather than sharp.
B. All of these
C. They are classified by letters.
D. They can be distinguished from one another by appearance and chemical composition.

Who owned most of the resources in a market or capitalistic economy? in a socialist or command economy? what determines ownership in a traditional economy. (economies)

The increase of pollutants from in mexico has raised concerns about garage to health and the environment

Aletsch glacier is the largest glacier in switzerland and the largest found in the alps, a mountain range which extends from monaco in the east to slovenia in the west. currently, the aletsch glacier is retreating. under what circumstances would this glacier see growth instead of retreat? a decline in plate tectonics across the mountain range annual snowfall that exceeds yearly losses an increase in ablation in the southern valleys a rise in temperatures to that of a mediterranean climate