The answer is C. This is correct because if the tree is near the equator, it will constantly be hot nearly everyday, because the Sun points straight at the equator. Because there is only one temperature, the tree doesn’t have to worry about dealing with the cold, only the heat.
I think it is light so B) light
I’m assuming the six kingdoms of life, but yes they do have a very large purpose for providing characteristics to bacteria, animals, fungi, humans, etc.