Agriculture, Fisheries & Minerals MCQ Questions with Answers

Jharia in Jharkhand is famous for coal mining. The area contains the Jharia Coalfield, one of India's largest coal reserves, which supplies fuel for power and industry. The question asks what is mainly found there, and coal is the material extracted and mined from this region. Other options are incorrect because iron, gold, or jute are not the primary resources associated with Jharia.

The correct choice is D: Bailadila. Bailadila iron ore deposits, located in Chhattisgarh, are among the country's largest and highest‑grade iron ore sources. Visakhapatnam (Vizag) imports iron ore from major producing regions like Bailadila to meet demand for steelmaking and port exports. The other options (Kakinder, Raigarh, Keonjhar) are not the primary or most significant sources linked to Visakhapatnam in common discourse.

The Raniganj coal field is located in West Bengal (Option D). The other states listed (Orissa, Bihar, Madhya Pradesh) are incorrect. Raniganj is in the eastern part of India, near the city of Asansol, within West Bengal.

The correct answer is D. Green Revolution technologies rely on high-yielding crop varieties, intensive use of chemical fertilizers, pesticides, and irrigation. These practices can lead to gradual loss of soil fertility due to nutrient imbalances and depletion. They can also cause increased soil alkalinity and salinity, especially with improper irrigation and drainage. Additionally, heavy chemical use can lead to chemical poisoning or toxicity in soils, affecting soil biology and long-term productivity. Therefore all of the listed problems can arise with Green Revolution practices.

The correct answer is intensive subsistence. Indian agriculture mainly focuses on producing enough food for the farmer’s family with high labor input on small plots, using rainfall and basic irrigation where available. This reflects the high population density and limited land per household. Shifting cultivation (A) is limited to specific forested or tribal areas; extensive commercial (B) and plantation (D) practices are not the dominant pattern nationwide. While some regions have commercial or plantation farming, the predominant nature across India is farming with intensive use of labor on small holdings to ensure subsistence needs.