Which of the following statement (s) is/are NOT true?

Metallic and non metallic minerals are the sources of metals.

The correct answer is Option 1: Metallic and non metallic minerals are the sources of metals.

Option 1: "Metallic and non-metallic minerals are the sources of metals.". Incorrect. Only metallic minerals are sources of metals. Non-metallic minerals do not yield metals. They are used for other purposes (e.g., mica, limestone, graphite, etc.).

Option 2:"Metallic minerals are further divided into ferrous and non-ferrous metallic minerals." Correct. This is standard classification: Ferrous: Contain iron (e.g., iron ore, manganese). Non-ferrous: Do not contain iron (e.g., copper, bauxite).

Option 3: "All those minerals which have iron content are ferrous such as iron ore itself and those which do not have iron content are non-ferrous such as copper, bauxite, etc." Correct. This accurately defines ferrous and non-ferrous metallic minerals.

Option 4: "Non-metallic minerals are either organic in origin such as fossil fuels also known as mineral fuels or are inorganic in origin such as mica, limestone and graphite, etc."Correct. Non-metallic minerals can be: Organic (e.g., fossil fuels). Inorganic (e.g., mica, limestone, graphite).