Question

when a heavier sea plate dives beneath a lighter continental plate, this process is known as ______
a) faults
b) tectonics
c) accretion
d) subduction

when moving plates grind past each other, the activity sometimes produces cracks called ______
a) faults
b) folds
c) accretions
d) volcanoes

Explanation:

First Question

• Option A: Faults are fractures in the Earth's crust where movement occurs, not the process of one plate diving under another.
• Option B: Tectonics refers to the study of plate movements and related processes, not the specific process described.
• Option C: Accretion is the growth of a landmass by adding material, not plate submergence.
• Option D: Subduction is the process where a denser (heavier) oceanic plate dives beneath a less dense (lighter) continental plate.

• Option A: Faults are cracks or fractures in the Earth's crust formed when plates grind past each other (transform boundary movement).
• Option B: Folds are bends in rock layers due to compressional forces, not from plates grinding past.
• Option C: Accretions are related to adding material to a landmass, not cracks from plate movement.
• Option D: Volcanoes are formed from magma rising, not from plates grinding past to form cracks.

Answer:

D) subduction

Second Question