___ moves the rock and sediment down a river.

Question

Erosion
Wind
Deltas
None of the above.

Answer 1

Erosion

Answer 2

Two main sources of water for rivers include ___ and ___.

Mountains and oceans.
Surface and underground water.
Rain and glaciers.
Glaciers and oceans.

Answer 3

Surface and underground water.

Answer 4

Rank the following from containing the smallest to largest amount of water.

Stream, Headwater, Main Stream.
Headwater, Main Stream, Stream.
Headwater, Stream, Main Stream.
Main Stream, Headwater, Stream.

Answer 5

Headwater, Stream, Main Stream.

Answer 6

What factors influence how much work a river can do?

Sediment type, stream gradient, and amount of water.
Length of river, amount of water, and sediment type.
Length of river, sediment type, and riverbed gradient.
Human presence, length of river, and amount of water.

Answer 7

Sediment type, stream gradient, and amount of water.