Solution:

Geography Quiz

(i) The Wular lake is located in (d) Jammu and Kashmir.

(ii) The river Narmada has its source at (c) Amarkantak.

(iii) The salt water lake is (a) Sambhar.

(iv) The longest river of Peninsular India is (c) Godavari.

(v) The river that flows through a rift valley is (d) Tapi.

Solution:

Water Divide and River Basins

Solution:

Lakes of India

Natural Lakes

• Wular
• Dal
• Nainital
• Chilika
• Sambhar
• Loktak
• Pulicat

Human-Created Lakes

• Gobind Sagar
• Bhimtal
• Barapani
• Rana Pratap Sagar
• Nizam Sagar
• Nagarjuna Sagar
• Hirakund

Solution:

Differences Between Himalayan and Peninsular Rivers

The Himalayan rivers, originating from glaciers, have a perennial flow, ensuring water throughout the year. They exhibit a youthful stage with deep valleys and a rapid current, often leading to the formation of gorges. In contrast, Peninsular rivers are seasonal, reliant on monsoon rains, and generally flow over a plateau with less erosion, resulting in broader valleys. Himalayan rivers like the Ganges and Indus are long and swift, while Peninsular rivers such as the Godavari and Krishna are shorter and meandering. Additionally, Himalayan rivers contribute to sediment deposition at their deltas, whereas Peninsular rivers form alluvial plains.

Solution:

Comparison of East Flowing and West Flowing Rivers of the Peninsular Plateau

East flowing rivers, like the Godavari and Krishna, drain into the Bay of Bengal. They are generally longer, have a gentle slope, and form deltas. Their flow is influenced by the monsoon, leading to seasonal variations in water volume.

In contrast, west flowing rivers, such as the Narmada and Tapi, empty into the Arabian Sea. These rivers are shorter, flow through rift valleys, and often create deep gorges. They have a more consistent flow throughout the year due to less seasonal variation.

Solution:

Importance of Rivers for the Country's Economy

Rivers play a crucial role in a country's economy by providing water for irrigation, which supports agriculture and food production. They serve as transportation routes, facilitating trade and movement of goods. Rivers are sources of hydroelectric power, contributing to energy generation. Additionally, they support fishing industries and recreational activities, boosting tourism. The presence of rivers also encourages urban development along their banks, leading to economic growth. Furthermore, they help maintain biodiversity and ecosystems, which are essential for sustainable development and natural resource management.