All the following are examples of limited factors in a ecosystems expect water because the definition of an ecosystem is:
"The interacting synergism of all living organisms in a particular environment; every plant, insect, aquatic animal, bird, or land species that forms a complex web of interdependency. An action taken at any level in the food chain, use of a pesticide for example, has a potential domino effect on every other occupant of that system. "- mass. university
Water has ecosystem while others have limited ecosystem