The answer is that "since they do not interact with the electromagnetic force, they do not feel friction or drag and hence do not contract with the rest of the protogalactic cloud." WIMPs (Weakly-Interacting Massive Particles) are hypothetically constituted to dark matter. It is in their nature to be less interactive, so they are scattered throughout galactic halos and not focused into the galaxy's disk.
A reverse fault is where the plates are deviding
A strike-slip fault is where the plates slide by each other but dont collide
so it would have to be ( A ) if there isnt a forth answer
Answer: I think the answer is D
There are certain materials that prevent a building from falling in earthquakes and instead, wiggle back and forth.
