Question

Gold, petroleum, and coal are examples of-

• A. Minerals
• B. Rocks
• C. Fossils
• D. Stones

Answer 1

The correct option is A

Minerals

The explanation for the correct answer

Option(A) Minerals

1. A mineral is a solid chemical compound with fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.
2. Minerals are generally found in the earth's crust like gold, petroleum, coal, ore, and diamonds.
3. Hence, option (A) is correct.

The explanation for the incorrect answer

Option (B) Rocks

1. A rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter.
2. A mineral is made up of rocks and coal is non-living and made up of atoms of elements.
3. Hence, option (B) is incorrect.

Option (C) Fossils

1. The fossils are the decomposition of buried dead organisms under the pressure and heat in the earth's crust.
2. Coal and petroleum are the decompositions of buried dead organisms but gold is not fossils.
3. Hence, option (C) is incorrect.

Option (D) Stones

1. Stones are a hard non-metallic mineral matter of which rock is made, by which a building is made.
2. Examples: Granite, limestone, slate.
3. Hence, option (D) is incorrect.

Therefore, gold, petroleum, and coal are examples of option (A) minerals.