Question

what are the two types of minerals?
a. industrial and environmental
b. valuable and invaluable
c. metallic and nonmetallic
d. important and unimportant

please select the best answer from the choices provided

a
b
c
d

Explanation:

Minerals are substances that are naturally occurring, inorganic, solid, have a definite chemical composition, and a crystalline structure. Metallic minerals contain metals in their raw form and are usually hard, lustrous, and good conductors of heat and electricity. Nonmetallic minerals do not contain metals and have different properties like being non - lustrous, not good conductors of heat and electricity etc.

• Option a: Industrial and environmental are not the standard classification types of minerals.
• Option b: Valuable and invaluable are not the scientific classification terms for minerals.
• Option c: Metallic (e.g., iron ore, copper ore) and nonmetallic (e.g., limestone, gypsum) are the two main types of minerals based on their chemical and physical properties.
• Option d: Important and unimportant are subjective terms and not a scientific classification of minerals.

Answer:

C. metallic and nonmetallic