Answer:
I am flora, not fauna. I am foliage, not trees. I am shrubbery, not grass. What am I?
By Moon or by Sun, I shall be found. Yet, if there's no light around, I am undone. What am I?
Forward I am heavy backward I am not. What am I?
I am taken from a mine and shut in a wooden case from which I am never released. Yet I am used by almost everybody. What am I?
I am the thing that is used to make your weight. What am I?
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?