Why are rivers important for the country’s economy?

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Rivers play a crucial role in a country's economy as they provide several key resources and benefits such as water for irrigation and hydropower, transportation routes for goods, opportunities for fishing and recreation, fertile land for agriculture, and drinking water. Additionally, rivers often form the basis for major urban centers, providing a source of jobs and economic growth. Thus, the preservation and responsible management of rivers are crucial to the well-being and prosperity of a country.

Rivers provide numerous benefits, including:

  1. Water supply: Rivers serve as a source of clean drinking water and irrigation water for crops.
  2. Hydropower generation: Rivers provide energy through hydroelectric power plants.
  3. Transportation: Rivers serve as important transportation routes, connecting regions and facilitating trade.
  4. Agriculture: Rivers provide fertile land for agriculture and help support food production.
  5. Ecosystem services: Rivers provide important habitats for plants and animals and help regulate the Earth's climate and water cycles.
  6. Recreational opportunities: Rivers offer opportunities for activities such as fishing, boating, and swimming.
  7. Economic benefits: Rivers often form the basis for major urban centers, providing jobs and contributing to economic growth.

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CBSE CLASS XII Related Questions

  • 1.
    Choose a correct option that shows an interaction in which one species benefits while the other is neither harmed nor benefitted.

      • Mycorrhizal associations between fungi and roots of higher plants
      • Sea anemone and clownfish
      • Abingdon tortoises and goats in the Galapagos Island
      • Cuscuta on hedge plants

    • 2.

      Assertion (A) : The two chains of DNA have antipolarity.

      Reason (R) : In one chain of DNA, ribose sugar at \(5^{\prime}\) end consists of a free phosphate moiety, while at the other end, the ribose sugar has free \(3^{\prime}\) - OH group.

        • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
        • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
        • Assertion (A) is true, but Reason (R) is false.
        • Assertion (A) is false, but Reason (R) is true.

      • 3.
        In Pisum sativum, the flower colour may be violet (V) or white (v). What proportion of the offspring in a cross of "VV × vv" would be expected to be violet?

          • 25%
          • 50%
          • 75%
          • 100%

        • 4.
          Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
          Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.

            • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
            • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
            • Assertion (A) is true, but Reason (R) is false.
            • Assertion (A) is false, but Reason (R) is true.

          • 5.

            "Indo-Burma" is considered as a hotspot. What is meant by the term "hotspots" in biodiversity ? List two criteria used for determining a "hotspot". Name any two hotspots of India.


              • 6.

                A student performed some crosses in plants and represented the result in the form of bar graphs as shown below. Each graph displays the phenotypic proportion of the progeny. Study the graphs and answer the questions :

                (c) What conclusion can you draw from the results of bar graphs of crosses I and II ? Name the genetic principle illustrated.

                  CBSE CLASS XII Previous Year Papers

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