There are four main abiotic components to an ecological system that are important: Energy, Water, Air, and Soil. Now, I want you to think of physical laws that exist that are important to life. I'll give one example that you can't use. Ex. Gravity is important to life because it tells which way a plant should grow and it provides the force needed for two things to have friction so they can move (like a dogs foot on the ground). This is a hard question.
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Feel free to share some curious train of thought you have, as well as share your thoughts on others.