Question

read the description below. use the definition of minerals to choose the correct statement about ivory.
ivory is a hard, solid, white material that comes from the tusks, or teeth, of animals, usually elephants.
choose one option
a ivory is a mineral because minerals either come from living things or are man - made.
b ivory is a mineral because minerals are always white in color.
c ivory is not a mineral because minerals dont come from living things.
d ivory is not a mineral because minerals are not solids.

Explanation:

Minerals are inorganic substances. Ivory comes from animals (living things), so it is organic. Option A is wrong as minerals are inorganic (not from living things). Option B is wrong because minerals are not always white (e.g., hematite is reddish - brown). Option D is wrong as minerals are solids. Option C is correct as minerals don't come from living things and ivory does.

Answer:

C. Ivory is not a mineral because minerals don't come from living things.