When earthworms add their wastes to the soil, then die and decay in the soil, they are contributing to the formation of

In a cross section of soil, the B horizon consists of

A river flowing across a wide flood plain begins to form looplike bends called

Landslides, mudflows, slump, and creep are all examples of

The process by which wind removes surface materials is called

Deltas are built up by

The actions of animals most commonly can cause the type of weathering known as ____________.

The times in the past when continental glaciers covered large parts of Earth’s land surface were the ____________________.

Loess is sediment made up of fine particles of silt that have been deposited far from their source by ____________________.

As waves repeatedly hit a beach, some of the beach sediment moves down the beach with the current, in a process called ____________________.

The mixture of sediments deposited directly by a glacier is called ____________________.

The two processes by which waves erode the land are impact and ____________________.

A continental glacier spreads out over a large island or continent.

Creep is very slow movement of sediment down a slope.

Stronger winds are able to move larger particles.

The topsoil is mostly made of partly weathered rock.

After chemical weathering, the chemical makeup of the weathered rock is the same as that of the original rock.

A wave-cut cliff forms when waves erode the base of a cliff so much that the rock above collapses.

A sea stack forms when waves erode a sea arch and the arch collapses.