Indian Geography- 1 - Free MCQ Practice Test with solutions, SSC CGL

The Narmada River originates from the Amarkantak Plateau in Madhya Pradesh. The Godavari originates in the Western Ghats (Maharashtra), the Krishna in Mahabaleshwar (Maharashtra), and the Kaveri in the Brahmagiri Hills (Karnataka).

Nathu La, located in Sikkim, connects India with Tibet and is a key trade route on the Indo-China border. Rohtang Pass connects Kullu and Lahaul (Himachal Pradesh), Zoji La links Kashmir with Ladakh, and Shipki La is in Himachal Pradesh.

Black soil, also known as regur soil, is ideal for cotton cultivation due to its moisture-retention capacity and fertility, commonly found in the Deccan Plateau. Alluvial soil suits crops like rice and wheat, laterite supports tea, and red soil is used for millets.

The Bhakra Nangal Project is a multipurpose dam on the Sutlej River, primarily in Himachal Pradesh and Punjab, providing irrigation, hydroelectricity, and flood control. Sardar Sarovar is on the Narmada, Damodar Valley on the Damodar, and Tehri Dam on the Bhagirathi.

The Kosi River is called the "Sorrow of Bihar" because of its frequent course changes and devastating floods in Bihar. The Brahmaputra causes flooding in Assam, while the Ganga and Yamuna also flood but are not specifically termed as such.

The Western Ghats block the southwest monsoon winds, causing heavy rainfall on their windward (western) side, while the leeward side remains drier. The Aravalli, Eastern Ghats, and Vindhya ranges do not have a similar impact on the monsoon.

Kharif crops are sown during the monsoon (June–July) and harvested in autumn. Rice is a major Kharif crop. Wheat, barley, and mustard are Rabi crops, sown in winter and harvested in spring.

The Western Ghats experience a tropical wet climate with heavy monsoon rainfall due to their location along the southwest monsoon path. The Thar Desert is arid, the Gangetic Plains are semi-arid to humid, and the Himalayas have a cold climate.

The Yamuna is the largest tributary of the Ganga, joining it at Allahabad (Prayagraj). The Tapi, Godavari, and Krishna are peninsular rivers that do not flow into the Ganga.

Terracing involves creating steps or terraces on slopes to reduce soil erosion by slowing down water runoff. Contour plowing follows the natural contours of the land, afforestation involves planting trees, and crop rotation improves soil fertility.

The Narmada River flows westward through a rift valley and drains into the Arabian Sea. The Ganga and Brahmaputra flow eastward into the Bay of Bengal, and the Kaveri also drains into the Bay of Bengal.

The Greater Himalayas, or Himadri, include the highest peaks like Mount Everest and Kanchenjunga. The Shivalik Range is the outermost, the Lesser Himalayas lie in the middle, and the Trans-Himalayas are north of the Greater Himalayas.

The Green Revolution introduced high-yielding variety (HYV) seeds, chemical fertilizers, and irrigation to boost agricultural productivity. It did not involve traditional seeds, reduced productivity, or decreased irrigation.

The Godavari is a peninsular river originating in the Western Ghats and flowing into the Bay of Bengal. The Ganga, Brahmaputra, and Yamuna are Himalayan rivers.

Laterite soil, found in high-rainfall areas, is suitable for tea cultivation and is prevalent in Assam, a major tea-producing state. Punjab has alluvial soil, Gujarat has black soil, and Rajasthan has desert soil.

The Sardar Sarovar Project is a multipurpose dam on the Narmada River in Gujarat. Bhakra Nangal is on the Sutlej, Tehri Dam on the Bhagirathi, and Damodar Valley on the Damodar River.

The Himalayas act as a barrier, forcing the southwest monsoon winds to rise and cause rainfall. The Aravalli Range, Deccan Plateau, and Bay of Bengal play secondary roles in monsoon patterns.

Zaid crops are grown in the summer season (March–June) between Kharif and Rabi seasons. Watermelon is a Zaid crop, while rice and sugarcane are Kharif, and wheat is a Rabi crop.

Zoji La is a pass in Jammu and Kashmir, connecting Srinagar with Leh. Nathu La is in Sikkim, Rohtang Pass in Himachal Pradesh, and Shipki La is also in Himachal Pradesh.

Industrial effluents are a major cause of river pollution in India, contaminating rivers like the Ganga and Yamuna. Excessive rainfall, high soil fertility, and over-irrigation are not directly linked to river pollution.