The principle difference between where salt marshes and mangrove forests grow is the salinity of the water. Please select the best answer from the choices provided T F.

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

d i think its   answer d

and i oop

explanation:

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).