Which agricultural product uses the most water per kilogram of product?

Regolith is any loose material that

The most important soil loss factor is

A ridge or highland that separates drainage systems that empty into different ocean basins is called

Most of Earth’s water is contained in

Ephemeral streams are short-lived because

Subtropical desert soils are poorly developed because of

Which type of drainage is common to areas with tilted layers of sedimentary rock?

Fluvial erosion begins when

The process where movement of one material wears away another material is called