1. Estuaries are partially enclosed coastal areas where freshwater from rivers mixes with saltwater from the sea. On India’s west coast, rivers like Narmada and Tapti descend swiftly from the Western Ghats and enter the Arabian Sea. Since the coast is narrow and steep, the rivers do not form deltas butRead more

    Estuaries are partially enclosed coastal areas where freshwater from rivers mixes with saltwater from the sea. On India’s west coast, rivers like Narmada and Tapti descend swiftly from the Western Ghats and enter the Arabian Sea. Since the coast is narrow and steep, the rivers do not form deltas but instead widen near their mouths, creating estuaries. These are rich in biodiversity, support fisheries and serve as natural harbors. Estuaries are vital for ecosystems and local livelihoods.

     

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  2. A lagoon is a shallow, coastal water body that is partly enclosed by landforms such as sandbars, coral reefs or barrier islands. It usually forms where the coastline is low and rivers deposit silt. On the east coast of India, two prominent lagoons are Chilika Lake in Odisha, Asia’s largest brackishRead more

    A lagoon is a shallow, coastal water body that is partly enclosed by landforms such as sandbars, coral reefs or barrier islands. It usually forms where the coastline is low and rivers deposit silt. On the east coast of India, two prominent lagoons are Chilika Lake in Odisha, Asia’s largest brackish water lagoon and Pulicat Lake in Andhra Pradesh. These lagoons are important for fishing, bird sanctuaries, biodiversity and the livelihoods of nearby coastal communities.

     

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  3. Deltas are formed at river mouths where the river slows and deposits silt and sediment, creating a fan- or triangle-shaped landform. These deposits are rich in minerals, making the soil highly fertile. Rivers like Ganga, Godavari, Krishna and Mahanadi form vast deltas on India’s east coast. These deRead more

    Deltas are formed at river mouths where the river slows and deposits silt and sediment, creating a fan- or triangle-shaped landform. These deposits are rich in minerals, making the soil highly fertile. Rivers like Ganga, Godavari, Krishna and Mahanadi form vast deltas on India’s east coast. These deltas support intensive agriculture due to their nutrient-rich soil and ample water supply. They are also home to many species of birds and fish, making them ecologically and economically significant.

     

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  4. India’s two main island groups are: Andaman and Nicobar Islands in the Bay of Bengal – a chain of over 500 volcanic islands with dense forests, unique tribes and coral reefs. Lakshadweep Islands in the Arabian Sea – a coral atoll archipelago consisting of 36 islands, mostly uninhabited. These islandRead more

    India’s two main island groups are:

    1. Andaman and Nicobar Islands in the Bay of Bengal – a chain of over 500 volcanic islands with dense forests, unique tribes and coral reefs.
    2. Lakshadweep Islands in the Arabian Sea – a coral atoll archipelago consisting of 36 islands, mostly uninhabited.
      These islands are important for biodiversity, defense, tourism and marine resources. Their remote locations also give India strategic control over large areas of the surrounding oceans.

     

    For more NCERT Solutions for Class 7 Social Science Chapter 1 Geographical Diversity of India Extra Questions & Answer:

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  5. The Andaman and Nicobar Islands are located in the Bay of Bengal and have great geographic and historical significance. They consist of volcanic islands with coral reefs, rainforests and unique biodiversity. Historically, the Cellular Jail in Port Blair was used to exile Indian freedom fighters undeRead more

    The Andaman and Nicobar Islands are located in the Bay of Bengal and have great geographic and historical significance. They consist of volcanic islands with coral reefs, rainforests and unique biodiversity. Historically, the Cellular Jail in Port Blair was used to exile Indian freedom fighters under British rule. The islands also hold strategic defense importance due to their proximity to international sea routes. Their rich tribal culture, marine ecosystems and natural beauty add to their uniqueness.

     

    For more NCERT Solutions for Class 7 Social Science Chapter 1 Geographical Diversity of India Extra Questions & Answer:

    https://www.tiwariacademy.com/ncert-solutions/class-7/social-science/

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