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UPSC Exam  >  UPSC Questions  >  Assertion (A): Afforestation in desert region... Start Learning for Free
Assertion (A): Afforestation in desert regions is necessary to prevent desertification.
Reason (R): Trees help in changing the climate and meeting the local needs for firewood, timber, and fodder.
  • a)
    Both A and R are true, and R is the correct explanation of A
  • b)
    Both A and R are true, but R is not the correct explanation of A
  • c)
    A is true, but R is false
  • d)
    A is false, and R is true
Correct answer is option 'A'. Can you explain this answer?
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Assertion (A): Afforestation in desert regions is necessary to prevent...
Afforestation helps in changing the local climate and meeting the needs of the local population, thus preventing desertification.
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Assertion (A): Afforestation in desert regions is necessary to prevent...
Assertion:
Afforestation in desert regions is necessary to prevent desertification.

Reason:
Trees help in changing the climate and meeting the local needs for firewood, timber, and fodder.

Explanation:
- Afforestation in desert regions is essential to prevent desertification as trees play a crucial role in stabilizing soil, reducing soil erosion, and increasing water retention in arid areas.
- Trees also help in changing the local climate by providing shade, reducing temperatures, and increasing humidity levels, which can contribute to preventing further desertification.
- Additionally, trees serve as a sustainable source of firewood, timber, and fodder for local communities living in desert regions, thereby reducing their dependence on scarce natural resources and preventing overexploitation of the environment.
Therefore, both the assertion and reason are true, and the reason correctly explains why afforestation in desert regions is necessary to prevent desertification.
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Passage-1 ‘Desertification’ is a term used to explain a process of decline in the biological productivity of an ecosystem, leading to total loss of productivity. While this phenomenon is often linked to the arid, semi-arid and sub-humid ecosystems, even in the humid tropics, the impact could be most dramatic. Impoverishment of human-impacted terrestrial ecosystems may exhibit itself in a variety of ways : accelerated erosion as in the mountain regions of the country, salinization of land as in the semi-arid and arid ‘green revolution’ areas of the country, e.g., Haryana and western Uttar Pradesh, and site quality decline—a common phenomenon due to general decline in tree cover and monotonous monoculture of rice/wheat across the Indian plains. A major consequence of deforestation is that it relates to adverse alterations in the hydrology and related soil and nutrient losses. The consequences of deforestation invariably arise out of site degradation through erosive losses. Tropical Asia, Africa and South America have the highest levels of erosion. The already high rates for the tropics are increasing at an alarming rate (e.g., through the major river systems— Ganga and Brahmaputra, in thecontext), due to deforestation and land management practices subsequent to forest clearing. In the mountain context, the declining moisture retention of the mountain soils, drying up of the ‘underground springs and smaller rivers in the Himalayan could be attributed to drastic changes the forest cover. An indirect consequence is drastic alteration in the uplandlowland interaction, mediated through water. The current concern the tea planter of Assam has is about the damage to tea plantations due to frequent inundation along the flood-plains of Brahmaputra, and the damage to tea plantation and the consequent loss in tea productivity is due to rising level of the river bottom because of siltation and the changing course of the river system. The ultimate consequences of site desertification are soil degradation, alteration in available water’ and its quality, and the consequent decline in food, fodder and fuelwood yields essential for the economic wellbeing of rural communities.=> Which of the following is/are the nor inference/ inferences that can be made from the passage?1. Deforestation can cause changes in the course of rivers.2. Salinization of land takes place to human activities only.3. Intense monoculture practice in plains is a major reason for desertification in Tropical Asia, Africa and South America.Q.Select the correct answer using the cc given below.

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Assertion (A): Afforestation in desert regions is necessary to prevent desertification.Reason (R): Trees help in changing the climate and meeting the local needs for firewood, timber, and fodder.a)Both A and R are true, and R is the correct explanation of Ab)Both A and R are true, but R is not the correct explanation of Ac)A is true, but R is falsed)A is false, and R is trueCorrect answer is option 'A'. Can you explain this answer?
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Assertion (A): Afforestation in desert regions is necessary to prevent desertification.Reason (R): Trees help in changing the climate and meeting the local needs for firewood, timber, and fodder.a)Both A and R are true, and R is the correct explanation of Ab)Both A and R are true, but R is not the correct explanation of Ac)A is true, but R is falsed)A is false, and R is trueCorrect answer is option 'A'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Assertion (A): Afforestation in desert regions is necessary to prevent desertification.Reason (R): Trees help in changing the climate and meeting the local needs for firewood, timber, and fodder.a)Both A and R are true, and R is the correct explanation of Ab)Both A and R are true, but R is not the correct explanation of Ac)A is true, but R is falsed)A is false, and R is trueCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Afforestation in desert regions is necessary to prevent desertification.Reason (R): Trees help in changing the climate and meeting the local needs for firewood, timber, and fodder.a)Both A and R are true, and R is the correct explanation of Ab)Both A and R are true, but R is not the correct explanation of Ac)A is true, but R is falsed)A is false, and R is trueCorrect answer is option 'A'. Can you explain this answer?.
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