The answer of this question is related to the vision or how we see colors, so right answer is: becaus the chlorophel pigments absorbs all the light colors coming from the sun and reflect its color only (green)
LEAVES ON A TREE by: Anonymous
we see green bcuz of the chlorophyll
the real reason why we see green by: Daniel
The chloroplasts in plants absorb and use every color of light from the sun, except, green. It reflects green and that is why the plant appears green.
Why do we see green? by: Anonymous
Because there are chloroplasts in the leaves. They contain chlorophyll that helps absorb light during photosynthesis and also contain the green pigment that we see.