Rivers and Ecology in India
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Questions and Answers

What primary economic role do rivers serve in countries like India?

  • Irrigation and agriculture (correct)
  • Promoting tourism exclusively
  • Fishing and aquaculture only
  • Solely for transportation purposes

    • What environmental issue is primarily addressed by the National River Conservation Plan (NRCP)?

  • Promotion of recreational fishing activities
  • Water quality improvement and pollution abatement (correct)
  • Flood management in coastal areas
  • Enhancement of biodiversity in lakes

    • How do natural lakes contribute to river ecosystems during dry seasons?

  • They help maintain consistent water levels in rivers. (correct)
  • They significantly decrease the water level in rivers.
  • They reduce the flow rate of rivers completely.
  • They solely exist for aesthetic purposes.

    • Which of the following pollutants primarily affects river water quality?

    <p>Untreated sewage and industrial waste</p> Signup and view all the answers

    What significant benefit do lakes provide beyond irrigation and flood prevention?

    <p>They influence local climate and enhance tourism.</p> Signup and view all the answers

    Which of the following rivers flows west in a rift valley due to faulting?

    <p>Narmada</p> Signup and view all the answers

    What is the approximate length of the Godavari river?

    <p>1500 km</p> Signup and view all the answers

    Which basin is known as the Dakshin Ganga?

    <p>Mahanadi Basin</p> Signup and view all the answers

    Which river creates picturesque locations like the Marble rocks near Jabalpur?

    <p>Narmada</p> Signup and view all the answers

    Which of the following statements about the Brahmaputra River is correct?

    <p>It forms riverine islands in Assam.</p> Signup and view all the answers

    What is the main characteristic that distinguishes Himalayan rivers from other river systems in India?

    <p>They are perennial and fed by rain and melting snow.</p> Signup and view all the answers

    What role does a water divide play in a drainage system?

    <p>It separates two distinct drainage basins.</p> Signup and view all the answers

    Which river pairs are examples of Himalayan rivers mentioned in the context?

    <p>Indus and Brahmaputra</p> Signup and view all the answers

    How does the drainage system of India primarily get influenced?

    <p>By the country's relief features.</p> Signup and view all the answers

    What is the definition of a drainage basin?

    <p>The geographical area drained by a single river system.</p> Signup and view all the answers

    What are the characteristics of seasonal lakes?

    <p>They fill with water only during specific times, often the rainy season.</p> Signup and view all the answers

    Which of the following is NOT a role of lakes?

    <p>Enhancing river currents</p> Signup and view all the answers

    What is a common feature of oxbow lakes?

    <p>They are formed when rivers meander and cut off parts of their loops.</p> Signup and view all the answers

    How do glaciers contribute to lake formation?

    <p>By eroding land and forming basins filled with meltwater</p> Signup and view all the answers

    Which of the following lakes is known to be the largest freshwater lake in India?

    <p>Wular Lake</p> Signup and view all the answers

    What impact does river pollution have on economy?

    <p>Impacts water quality.</p> Signup and view all the answers

    Which type of lake is referred to as a 'sea'?

    <p>Large extent lakes like Caspian</p> Signup and view all the answers

    What is one way lakes help regulate the climate?

    <p>By affecting local temperature and precipitation patterns</p> Signup and view all the answers

    Which tributary of the Ganga River flows from the Yamunotri Glacier?

    <p>Yamuna</p> Signup and view all the answers

    What unique geographic feature characterizes the Ganga River system's drainage pattern?

    <p>It features large meanders due to its gentle gradient.</p> Signup and view all the answers

    What is the primary function of the Namami Gange Programme?

    <p>To abate pollution and rejuvenate the Ganga.</p> Signup and view all the answers

    Which river is referred to as Tsang Po in Tibet, and Jamuna in Bangladesh?

    <p>Brahmaputra</p> Signup and view all the answers

    Which of the following rivers is a tributary that originates in semi-arid areas of the peninsular uplands?

    <p>Chambal</p> Signup and view all the answers

    What is unique about the Sundarban Delta?

    <p>It is the world's largest and fastest-growing delta.</p> Signup and view all the answers

    Which river forms a rift valley in Madhya Pradesh as it flows towards the sea?

    <p>Narmada</p> Signup and view all the answers

    How is the Brahmaputra River characterized in terms of its geographical flow?

    <p>It mostly flows outside India and takes a 'U' turn.</p> Signup and view all the answers

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