Question

Gold, petroleum and coal are examples of ____________.
(A) Rocks
(B) Liquid
(C) Minerals
(D) Fossils

Answer 1

Hint Coal and oil were formed due to the degradation of ancient plants that existed millions of years ago. These dead plant matter began to accumulate, eventually forming a substance called peat. Over time, the heat and pressure generated by geological processes convert these substances into coal.

Complete step by step solution
Coal Coal is a non-renewable fossil fuel that is burned to generate electricity. Mining technology and combustion are harmful to minors and the environment; however, coal accounts for about half of the electricity generated in the United States. As the plant residue sieved to the depths below the earth's surface, it encountered problems with rising temperature and pressure. Mud and acidic water prevent plants from contacting oxygen

Petroleum As the plant residue sieved to the depths below the earth's surface, it encountered problems with rising temperature and pressure. Mud and acidic water prevent plants from contacting oxygen. Therefore, plant matter decomposes at a very slow rate and retains most of the carbon (energy). These buried plant areas are called peat swamps. Peat bogs store large amounts of carbon several meters underground. Peat itself can be burned as fuel and is the main source of heat in countries such as Scotland, Ireland, and Russia.

Gold A precious yellow metallic element with high ductility and ductility, and will not be oxidized or corroded. Symbol: Au; atomic weight: 196.967; atomic number: 79; specific gravity: 19.3 at 20°C. A certain amount of gold coins: paid in gold coins. A monetary standard based on this metal; the gold standard. Money; Wealth; wealth. The main purpose of gold. Gold has been used to make decorations and jewelry for thousands of years.

Thus, the option (C) is correct.

Note:These dead plant matter began to accumulate, eventually forming a substance called peat. Over time, the heat and pressure generated by geological processes convert these substances into coal.