Question

which rock feature is the line running between points a and b most likely to be?
a. rock strata
b. sill
c. dike
d. fault

Explanation:

To determine the rock feature between A and B, we analyze each option:

• Option A (rock strata): Rock strata are layers, but the line between A and B is a fracture/break, not a layer.
• Option B (sill): A sill is a horizontal igneous intrusion, not a vertical/angled break.
• Option C (dike): A dike is a vertical/near - vertical igneous intrusion, but the line here is a break in existing rock, not an intrusion.
• Option D (fault): A fault is a fracture in rock along which movement has occurred or can occur. The line between A and B shows a break in the rock layers, consistent with a fault.

Answer:

D. fault