Question

Explain the uses of rocks.

Answer 1

• Rocks are one of the most valuable resources to mankind.
• The sedimentary rocks are the chief sources of petroleum and coal
• The metallic minerals are associated with the igneous rocks. The minerals of great economic value are iron ore, nickel, copper, lead, zinc, chromate, manganese, and rare materials like gold, silver and platinum.
• Under tropical conditions the sedimentary rocks also contain reserves of Bauxite, tin and manganese.
• Even metamorphic rocks like marble and precious minerals like gems, rubies, Graphite are most valuable.
• Rocks are also essentially required as a raw material for construction works.
• Further decaying of rocks forms soils.
• The chemical composition as well as physical properties of soil is directly related to the parental rocks. The fertility of the soils is much determined by the rocks. As such rocks also influence agricultural activities of man.