Animals, including plants and some other microbes, get energy directly from the sun. But when they’re INDIRECTLY getting energy from the sun, they eat other organisms, like plants and/or meat.
Answer: the answer is that it used to be a wetter place
Explanation:
The question is referring to primary succession, which begins with the colonization of living organisms in an area that hasn't had any living organisms before.
This kind of succession begins with microorganisms, and plants such as lichens and mosses.
Given that a rock outcrop is a terrestrial environment, lichens (C) are most likely to be the firsts organisms.