Eleanor is the owner of a cupcake bakery. She sells different flavors and sizes of cupcakes, but in general, she believes that when she puts chocolate frosting on the cupcakes, people are more satisfied. She is proposing an experimental study to examine this belief

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