Indian Geography MCQs with Answers & AI Explanation

The Himalayan mountain system developed from the Tethys geosyncline, where the ancient Tethys Ocean basin acted as the sedimentary trough between the Indian and Eurasian plates. Tectonic plate collision closed this ocean, causing the sediments to uplift and form the Himalayas. Other options refer to different geosynclines not responsible for the Himalayas: Ural and Rocky geosynclines are associated with their respective mountain belts, not the Himalayas. Hence, the correct choice is C—Tethys geosynclines.

The Dharwar system is a Precambrian rock sequence in India famed for its rich mineral deposits, especially iron ore and base metals, earning it the label “storehouse of minerals.” It forms part of the oldest rocks in the Peninsular Shield and hosts extensive metallic ore bodies. The other options refer to different rock systems with comparatively lesser or different mineral emphasis: Cuddapah is younger sedimentary/volcanic rocks, Archaean is a broad era including various formations, and Vindhyan is a younger sedimentary sequence. Recognizing Dharwar’s mineral wealth helps explain why it’s singled out as a resource storehouse in exams.

The correct option is D. Lagoon of Kerala refers to a water body confined to Kerala and is not a mountain range. Among the choices, Terai Plain, Ganges Delta, and Regur of Deccan Plateau are spread across multiple states (and in some cases across international regions for the delta). The term “lagoon” here indicates a coastal water body near Kerala, making it a single-state feature. The other options do not fit the idea of a single-state mountain feature and are not single-state phenomena.

Kingri-Bingri and Neeti-Mana are named as passes, not rivers, mountains, or religious places. A pass (also called a saddle or col) is a navigable route that goes through a mountain range, forming a lower point that enables easier travel from one side to the other. These names indicate specific mountain passes used historically or locally for crossing the terrain. The other options are incorrect because: passes are not rivers (watercourses), not mountains themselves, and not religious sites.

Among the options, Gandak is not a tributary of the Yamuna. Chambal, Betwa, and Ken are all tributaries that eventually join the Yamuna. The Gandak river is a major river that flows from Nepal and joins the Ganges. The Yamuna basin receives water from its own set of tributaries, but Gandak does not feed into Yamuna; instead, it contributes to the Ganges system. Understanding major river basins helps in mapping river networks and their interlinkages.

The correct option is B. A delta is a landform created at a river’s mouth where sediment is deposited as the river slows down and enters a sea or ocean. Ganga forms the large Bengal delta in the Bay of Bengal; Mahanadi forms a delta at its mouth in the Bay of Bengal; Kaveri forms a delta near its mouth in the Arabian Sea region. Narmada, however, flows westward through the Narmada Valley and enters the Arabian Sea with a more linear estuary rather than a fan-shaped delta, due to strong tidal action and rocky terrain that hinder wide sediment deposition. Hence, Narmada does not form a delta like the others listed.