INDIAN GEOGRAPHY

Detailed explanation-1: -A Mineral is defined as an inorganic, naturally occurring, homogenous solid, with a definite chemical composition, and ordered (crystalline) atomic structures.

Detailed explanation-2: -"Definite chemical composition” means that all occurrences of that mineral have a chemical composition that varies within a specific limited range. For example: the mineral halite (known as “rock salt” when it is mined) has a chemical composition of NaCl.

Detailed explanation-3: -The correct option is A mineral. A mineral is a substance with a definite chemical composition, formed without any human interference. Different minerals can be found in varying quantities, in different places around the globe.

Detailed explanation-4: -Naturally occurring substance means an element, compound or material which is already present in the environment (soil, water, air) and in forms or concentrations that have not been directly altered by human activity.

Detailed explanation-5: -A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. Common minerals include quartz, feldspar, mica, amphibole, olivine, and calcite.