Natural Resources and Indian Heritage - Grade 7 Science Free MCQ Test

Assam has two operational oil refineries:

1. Indian Oil Corporation Limited (IOCL) Refinery at Dibrugarh.
2. Bongaigaon Refinery and Petrochemicals Limited (BRPL) at Bongaigaon.

These refineries play a crucial role in processing crude oil and producing various petroleum products in the region.

Thus, the correct answer is Option B (Two).

India is the largest tea producing country in the world. It is grown in Assam mainly. Assam produces the largest volume of tea in India. Assam Tea is known for its body, bright color rich flavor and aroma. Tea estates of Assam are world’s largest tea growing region, grown in the lowlands of Assam in the valley of the Brahmaputra river.

• The biggest reserve of mica is found in India.
• India is the world's leading producer of mica, particularly in the states of Bihar, Jharkhand, Rajasthan, and Andhra Pradesh. The country has vast deposits of this mineral, which is used in various industries, including electronics, cosmetics, and construction.

Thus, the correct answer is Option B (India).

Raniganj is the first coal mine in India. Coal mining in India first started in the Raniganj Coalfield. In 1774, John Sumner and Suetonius Grant Heatly of the British East India Company found coal near Ethora, presently in Salanpur community development block.

Iron ore mines are primarily located in:

• Singhbhum (Jharkhand)
• Mayurbhanj (Odisha)
• Bastar (Chhattisgarh)

These regions are rich in iron ore deposits and are some of the major sources of iron ore in India.

• Option A (Salem, Bhadravati, Raniganj) is incorrect because these locations are known for other resources, like steel production or coal.
• Option B (Hazaribagh, Jharia, Kudremukh) is incorrect because Jharia and Kudremukh are known for coal, not iron ore.
• Option C (Monghyr, Balaghat, Hazaribagh) is incorrect because these areas are not primary iron ore mining regions.

Thus, the correct answer is Option D (Singhbhum, Mayurbhanj, Bastar).

Tummalapalle, which is known for its huge reserves of uranium, is located in the state of Andhra Pradesh.

• The discovery of uranium reserves at Tummalapalle was significant as it was found to be one of the largest uranium reserves in India.
• The reserves were estimated to be large enough to support India's nuclear power requirements for many years.

Thus, the correct answer is Option B (Andhra Pradesh).

Singhbhum, where copper ore is mined, is located in the state of Jharkhand.

• Singhbhum is well-known for its copper deposits, along with other minerals such as iron ore.
• It is one of the key mining regions in Jharkhand, which is rich in various mineral resources.

Thus, the correct answer is Option B (Jharkhand).

The deepest mine in Asia is Kolar Gold mine. Kolar Gold Fields (KGF) was one of the major gold mines in India and is located in the Kolar district in Karnataka, close to the city of Bangalore. It was closed in 2003 due to reducing deposits and increasing costs. The mine is considered the world’s second deepest gold mine.

Kerala has the largest reserves of monazite, with a high thorium content. Monazite is a reddish-brown phosphate mineral containing rare-earth metals. It occurs usually in small isolated crystals. It has a hardness of 5.0 to 5.5 on the Mohs scale of mineral hardness and is relatively dense, about 4.6 to 5.7 g/cm3.

The plateau rich in minerals in India is Chhotanagpur Plateau. Chotanagpur plateau is called the storehouse of minerals due to the fact that it is rich in minerals like mica, bauxite, copper, limestone, iron ore and coal. It is responsible for a significant share of the country’s mineral output.