What kind of drainage network is likely to form in a landscape where the bedrock is broken by a regularly-spaced grid of joints and fractures?
A) dendritic
B) radial
C) rectangular
D) trellis

Question

What kind of drainage network is likely to form in a landscape where the bedrock is broken by a regularly-spaced grid of joints and fractures? 
A) dendritic 
B) radial 
C) rectangular 
D) trellis

Quizplus · Accepted Answer

When bedrock is broken by a regularly-spaced grid of joints and fractures, the resulting drainage network is likely to form a rectangular pattern, with water flowing along the joints and fractures at right angles. This creates a series of rectangular drainage basins, which can be easily identified on maps and in the field. This type of drainage network is also known as a grid or trellis pattern. Thus, option C is the correct answer.

What Kind of Drainage Network Is Likely to Form in a Landscape