Minerals and Energy Resources (Class X)

This is the correct answer. The sparkle in some toothpastes comes from mica.

A ferrous mineral contains iron. Cobalt is a ferrous mineral.

This is the correct answer as bauxite is a non-ferrous mineral. It does not contain iron.

This is the correct answer as limestone consists of a single mineral.

This is the correct answer as bauxite is an example of such a weathered mass and aluminium is extracted from bauxite.

Bauxite is formed when residual mass of weathered material containing ores remains after the decomposition of surface rocks, and the removal of soluble constituents from the surface.

This is the correct answer. Potash is found in many places in the world but is not found in ocean waters and ocean beds.

This statement is the correct answer. The ore from Kudremukh mines in Karnataka is transported as slurry through a pipeline to a port near Mangalore.

Mica is not found in Karnataka.

This is the correct answer as this statement is correct. Extraction of minerals in India is possible only after obtaining due permission from the government.

This is the correct answer. Orissa is the largest producer of manganese ores in India.

This is the correct answer. Due to its excellent di-electric strength, low power loss factor, insulating properties and resistance to high voltage, mica is one of the most indispensable minerals used in electric and electronic industries.

This is the correct answer. The Balaghat mines in Madhya Pradesh produce 52 per cent of India’s copper. The Singbhum district of Jharkhandand and the Khetri mines in Rajasthan are also famous for their copper deposits.

This is the correct answer. This statement is correct about aluminium.

This is the correct answer as only statement B is correct. Limestone is the basic raw material for the cement industry.

This is the correct answer as common salt is largely derived from the ocean waters. It is not a sedimentary mineral.

This is the correct answer. About 63 per cent of India’s petroleum production is from Mumbai High.

This is the correct answer as Damodar valley has large reserves of metallurgical coal.

This is incorrect as coal is of four types, viz. peat, lignite, bituminous and anthracite. Lignite is a low grade brown coal, which is soft with high moisture content.

This is the correct answer. Two experimental projects have been set up in India in locations with hot springs, to harness geothermal energy. They are in the Parvati valley near Manikarn in Himachal Pradesh and in the Puga valley, Ladakh.

This is the correct answer as both statements are correct. Petroleum is sometimes found in fault traps between porous and non-porous rocks. Limestone or sandstone is the oil bearing layer as these rocks are porous and are surrounded by non-porous rocks.

This is the correct answer as uranium and thorium are available in Jharkhand and the Aravalli ranges of Rajasthan. Thorium is also found in Monazite sands of Kerala.