A fault is a break in the Earth's crust along which blocks of the crust slide relative to one another.
2. D. Stress
Stress is the force applied to a rock and may cause deformation. The three main types of stress are typical of the three types of plate boundaries: compression at convergent boundaries, tension at divergent boundaries, and shear at transform boundaries. Where rocks deform plastically, they tend to fold.
3. A. Tension
Tension stress pulls rocks apart. Tension causes rocks to lengthen or break apart. Tension is the major type of stress found at divergent plate boundaries. Shear stress happens when forces slide past each other in opposite directions (Figure below).
4. B. Compression
Compression squeezes rocks together, causing rocks to fold or fracture Compression is the most common stress at convergent plate boundaries.
5. C. Shear
Shear stress is the stress component parallel to a given surface, such as a fault plane, that results from forces applied parallel to the surface or from remote forces transmitted through the surrounding rock.
6.A. Normal Fault
Tensional forces cause stretching and thinning of the rocks, usually accompanied by tensional fault, also known as normal faults.
Answers & Comments
Answer:
1. C
2. C
3. A
4. B
5. C
6. A
Explanation:
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1. C. Fault
A fault is a break in the Earth's crust along which blocks of the crust slide relative to one another.
2. D. Stress
Stress is the force applied to a rock and may cause deformation. The three main types of stress are typical of the three types of plate boundaries: compression at convergent boundaries, tension at divergent boundaries, and shear at transform boundaries. Where rocks deform plastically, they tend to fold.
3. A. Tension
Tension stress pulls rocks apart. Tension causes rocks to lengthen or break apart. Tension is the major type of stress found at divergent plate boundaries. Shear stress happens when forces slide past each other in opposite directions (Figure below).
4. B. Compression
Compression squeezes rocks together, causing rocks to fold or fracture Compression is the most common stress at convergent plate boundaries.
5. C. Shear
Shear stress is the stress component parallel to a given surface, such as a fault plane, that results from forces applied parallel to the surface or from remote forces transmitted through the surrounding rock.
6. A. Normal Fault
Tensional forces cause stretching and thinning of the rocks, usually accompanied by tensional fault, also known as normal faults.