Question

question 18 of 20
a low area of land often forms between hills or mountains. this low area is called a valley. which of the following might cause a valley to form?
a. waves from the ocean
b. erosion by a stream
c. basaltic lava flow from fissures
d. soil creep from freezing and thawing

Explanation:

Streams can erode the land between hills or mountains over time, carving out valleys. Ocean - waves affect coastal areas, not inland between hills/mountains. Basaltic lava flow fills in areas rather than creating low - lying valleys. Soil creep from freezing and thawing is a slow mass - movement process that does not typically form large valleys like stream erosion.

Answer:

B. Erosion by a stream