C hope that helps have a good one
It must be durable and available
Plants absorb me from the soil through assimilation, I am eaten by animals the animals and plants die and decompose where I am released back into the soil, weathering and erosion cause me to release out of rocks, I then find my way into the ocean being carried by water, I then return to the soil through the water.
An easy way to tell is if the trait is or isn’t in every generation. If a trait skips a generation, it’s most likely recessive.