A cold front<span> is the transition zone where a </span>cold<span> air mass is replacing a warmer one </span>T<span>hey move more slowly than warm fronts.</span> Because other three are characteristics of the cold front and they move faster than warm so option D is correct hope it helps
The presence of a mountain range could isolate the gene pool of the species which would likely change or mutate characteristics may arise in the species. <span />
