<span>The complete statement is this: 'An increase in food and a decrease in predators would most likely increase genetic variation in a population. An increase in available food is an environmental factor which brings about genetic variation in the population of a specie.</span><span />
Option B, faulting, is the right answer.
Layers of strata in the crust of the earth usually skim along each other. Seldom resistance or blockage generates this manner to end until enough force builds up to succeed whatever the opposing energy is. Faulting is the manner through which this pressure forces the levels to sustain their action, often creating cracks in the associated strata, and inducing earthquakes and trembling in the development of extreme pressure relief