What kind of environment would lead to dominantly yellow foliage?
I'm looking for various factors; Atmosphere Composition, Type of Sun, etc, whatever would work. That is, of course, if this is even likely/possible. I believe that yellow is generally not an ideal color for foliage, save for attracting bees or something (Which may be myth, I'll have to research that). The environment in question should ideally be able to support human life (not necessarily related) but i can work with it if impossible. No need for paragraphs unless you want to.
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1 answer
Your planet could be really low on iron.
There is a tree condition called chlorosis that is caused by low iron in the soil, and leads to light green/yellow leaves.
It could also be that the PH in the soil is to high, which keeps trees from absorbing the iron.
Or just go with Tom Andersons idea.
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