Which two coalfields make up India's most important coal-producing area, in the Damodar Valley?

Jharia and Raniganj. The correct answer is Jharia and Raniganj. They are key coalfields of the Damodar valley, across Jharkhand and West Bengal. Bokaro is another. Bailadila is iron ore, and Koderma is mica. Memory hook: Damodar coal means Jharia and Raniganj. Read more: Mineral Resource Distribution in India.

As on 1 April 2025, which state had the largest coal resources in India?

Odisha. The correct answer is Odisha. It had 100,975.78 Mt of coal. Jharkhand came second and Chhattisgarh third. Jharia in Jharkhand is a famous coalfield, but Odisha holds more coal. Memory hook: Odisha tops coal too. Read more: Mineral Resource Distribution in India.

Which state holds about 69.50% of India's magnetite iron ore resources?

Karnataka. The correct answer is Karnataka. Magnetite lies mostly in the south. Haematite lies mostly in the east, where Odisha holds 39%. Memory hook: magnetite south, haematite east. Read more: Mineral Resource Distribution in India.

In the Class X NCERT list of energy sources, which of these is a non-conventional source?

Atomic energy. The correct answer is Atomic energy. The list puts it with solar, wind, tidal, geothermal and biogas. Hydel and thermal power are conventional. Memory hook: atomic sits with the new sources. Read more: Mineral Resource Distribution in India.

The Exploration Licence, added to the MMDR Act in 2023, is awarded through which method?

Reverse bidding for a share of auction premium. The correct answer is reverse bidding for a share of auction premium. The bidder quoting the lowest share wins. The licence covers deep-seated and critical minerals. Memory hook: lowest share wins the licence. Read more: Mineral Resource Distribution in India.

In February 2025, mica was moved into which category of minerals?

Major minerals. The correct answer is major minerals. Barytes, felspar and quartz moved with it. Their rocks also hold critical minerals like lithium and beryl. Memory hook: mica moved up to major. Read more: Mineral Resource Distribution in India.

Which state was the leading producer of manganese ore in India in 2021-22?

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