What is meant by the "carrying capacity" of a piece of land?

The "carrying capacity" of a piece of land refers to the number of animals that can graze in this land without destroying it. The term can also be applied to populations of a biological species. In this case, the carrying capacity of a biological species refers to the maximum population size that an environment can sustain indefinitely. This requires taking into account resources such as food, water and land.

answer; (d) melting of sea ice;