Verdant

Plants appear green because of chlorophyll, a pigment crucial for photosynthesis. Chlorophyll absorbs blue and red light effectively but reflects green light, which is what our eyes perceive. link

In the inorganic world, green often comes from copper oxidation (like the Statue of Liberty's patina) or minerals containing chromium and vanadium (like Emeralds). link

The human eye is most sensitive to green light (approx. 555 nm). This sensitivity helped our ancestors spot predators in grass and distinguish types of vegetation.