Site identifies a place by its

Which of the following is not one of the seven points from the pre-start checklist recommended by the nsc

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii

Why is the color green callled green?