Impact of Cattle Grazing and Cropping Practices on Hydrological Cycle and Desertification
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Questions and Answers

What is the primary environmental problem caused by the biomagnification of non-degradable chemicals entering the food chain?

  • Depletion of microorganisms in the soil
  • Increased water salinity
  • Soil degradation
  • Harm to human life (correct)
  • What is the main cause of eutrophication in surface water bodies according to the passage?

  • Salinization of water bodies
  • Excessive growth of fast-growing water weeds
  • Chemical runoff from excessive use of fertilizers (correct)
  • Waterlogging and rise in water tables
  • What is the primary cause of soil salinization due to excessive irrigation?

  • Conversion of fertile land into saline and waterlogged areas
  • Lack of drainage
  • Rising water tables
  • Use of canal water or groundwater for irrigation (correct)
  • Which of the following is a consequence of over-irrigation leading to waterlogging?

    <p>Reduced suitability of the land for cultivation</p> Signup and view all the answers

    How can the problem of irrigation-induced soil salinization be addressed?

    <p>Flushing the soil with good quality water to remove salts</p> Signup and view all the answers

    What is the connection between rising water tables and the problem of irrigation salinity?

    <p>Rising water tables bring salt up into the root zone</p> Signup and view all the answers

    What is the primary cause of droughts according to the passage?

    <p>Overpopulation and poor land use</p> Signup and view all the answers

    How does deforestation contribute to drought, according to the passage?

    <p>All of the above</p> Signup and view all the answers

    What is the impact of overgrazing on the environment, as mentioned in the passage?

    <p>All of the above</p> Signup and view all the answers

    What is the impact of unplanned urbanization on the environment, according to the passage?

    <p>All of the above</p> Signup and view all the answers

    What is the impact of water logging in city areas, as mentioned in the passage?

    <p>It takes several days to mechanically pump out the water.</p> Signup and view all the answers

    According to the passage, what is the primary cause of droughts in areas that were not previously drought-prone?

    <p>Deforestation and land degradation</p> Signup and view all the answers

    What is one of the consequences of cattle overgrazing on land?

    <p>Denudation of vegetation</p> Signup and view all the answers

    Which erroneous cropping practice is mentioned as a cause of drought in Maharashtra?

    <p>Overuse of water for sugarcane cultivation</p> Signup and view all the answers

    How can carefully planned crop rotation help mitigate drought?

    <p>It allows planting of water-dependent crops in drier years</p> Signup and view all the answers

    Which practice can help prevent man-made droughts through continuous observation and comparison of rainfall levels?

    <p>Drought monitoring</p> Signup and view all the answers

    What impact does urbanization have on drought-prone areas according to the text?

    <p>Converts drought-prone areas into desertified ones</p> Signup and view all the answers

    Which technique is mentioned in the text as an artificial means to induce rainfall in drought-prone areas?

    <p>Cloud seeding</p> Signup and view all the answers

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