I believe the correct answer from the choices listed above is option C. It is the sunlight that <span>most likely to be a limiting factor for growth on the floor of a tropical rainforest. Sunlight hardly reach the floor of forests due to the large branches that covers the forest floor. Hope this answers the question.</span>
Why by Mimiwhatsup: different from rocky or terrestrial planets that are made of mostly rock. (https://www.lpi.usra.edu/education/space_days/activities/gasGiants/aboutGasGiants.pdf)
Because the amount of liquid water decreases and the amount of dissolved salt remains constant, the concentration of salt in the liquid water around the iceberg will increase.