Which adaptation would be most useful to an insect that lives in the grass?
a.
green coloration
b.
long legs
c.
strong wings
d.
waterproof shell

The adaptation that would be most useful to an insect that lives in the grass is A. green coloration. This would be a useful adaptation for them because now they could camouflage easily - grass is green, and if they are also green and hiding in grass, nobody can spot them easily, which is a perfect way for them to hide from predators that may want to eat them.

2hydrogen and 1 covalent