Look up Dawrin's theory of evolution. Basically, fossil records show how life forms change over time through evolution.
<h2>Answer</h2>
- Wind
- Sunlight
- Plants
- Soil
- Coal
- Minerals
- Water
- Animals

In short it's natural resources.
Explanation:
I think the answer is contraceptive pills but not sure
Hey! they are usually single celled!
hope this helped xoxo