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The cycling of elements in an ecosystem is called
  • a)
    chemical cycles
  • b)
    biogeochemical cycles
  • c)
    geological cycles
  • d)
    geochemical cycles
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
The cycling of elements in an ecosystem is called a) chemical cyc...
A biogeochemical cycle is a pathway through which a the chemical element moves through the biotic and the abiotic factors of an ecosystem. It includes living factors like living
organisms and nonliving factors such as rocks, air, water, chemicals etc.
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The Himalayan ecosystem is highly vulnerable to damage, both due to geological reasons and on account of the stress caused by increased pressure of population, exploitation of natural resources and other related challenges. These aspects may be exacerbated due to the impact of climate change. It is possible that climate change may adversely impact the Himalayan ecosystem through increased temperature altered precipitation patterns, episodes of drought and biotic influences.This would not only impact the very sustenance of the indigenous communities in uplands but also the life of downstream dwellers across the country and beyond.Therefore, there is an urgent need for giving special attention to sustain the Himalayan ecosystem. This would require conscious efforts for conserving all the representative systems.Further, it needs to be emphasized that the endemics with restricted distribution, and most often with specialized habitat requirements, are among the most vulnerable elements. In this respect the Himalayan biodiversity hotspot, with rich endemic diversity, is vulnerable to climate change.The Threats include possible loss of genetic resources and species, habitats and concomitantly a decrease in ecosystem services. Therefore, conservation of endemic elements in representative ecosystems/habitats assumes a great significance while drawing conservation plans for the region.Towards achieving the above, we will have to shift towards contemporary conservation approaches, which include a paradigm of landscape level interconnectivity between protected area systems. The concept advocates a shift from the species-habitat focus to an inclusive focus on expanding the biogeographic range so that natural adjustments to climate change can proceed without being restrictive.Q.With reference to the passage, the following assumptions have been made: 1. To maintain natural ecosystems, exploitation of natural resources should be completely avoided.2. Not only anthropogenic but also natural reasons can adversely affect ecosystems.3. Loss of endemic diversity leads to the extinction of ecosystems.Which of the above assumptions is/are correct?

The Himalayan ecosystem is highly vulnerable to damage, both due to geological reasons and on account of the stress caused by increased pressure of population, exploitation of natural resources and other related challenges. These aspects may be exacerbated due to the impact of climate change. It is possible that climate change may adversely impact the Himalayan ecosystem through increased temperature altered precipitation patterns, episodes of drought and biotic influences.This would not only impact the very sustenance of the indigenous communities in uplands but also the life of downstream dwellers across the country and beyond.Therefore, there is an urgent need for giving special attention to sustain the Himalayan ecosystem. This would require conscious efforts for conserving all the representative systems.Further, it needs to be emphasized that the endemics with restricted distribution, and most often with specialized habitat requirements, are among the most vulnerable elements. In this respect the Himalayan biodiversity hotspot, with rich endemic diversity, is vulnerable to climate change.The Threats include possible loss of genetic resources and species, habitats and concomitantly a decrease in ecosystem services. Therefore, conservation of endemic elements in representative ecosystems/habitats assumes a great significance while drawing conservation plans for the region.Towards achieving the above, we will have to shift towards contemporary conservation approaches, which include a paradigm of landscape level interconnectivity between protected area systems. The concept advocates a shift from the species-habitat focus to an inclusive focus on expanding the biogeographic range so that natural adjustments to climate change can proceed without being restrictive.Q.What is the most important message conveyed by the passage?

The Himalayan ecosystem is highly vulnerable to damage, both due to geological reasons and on account of the stress caused by increased pressure of population, exploitation of natural resources and other related challenges. These aspects may be exacerbated due to the impact of climate change. It is possible that climate change may adversely impact the Himalayan ecosystem through increased temperature altered precipitation patterns, episodes of drought and biotic influences.This would not only impact the very sustenance of the indigenous communities in uplands but also the life of downstream dwellers across the country and beyond.Therefore, there is an urgent need for giving special attention to sustain the Himalayan ecosystem. This would require conscious efforts for conserving all the representative systems.Further, it needs to be emphasized that the endemics with restricted distribution, and most often with specialized habitat requirements, are among the most vulnerable elements. In this respect the Himalayan biodiversity hotspot, with rich endemic diversity, is vulnerable to climate change.The Threats include possible loss of genetic resources and species, habitats and concomitantly a decrease in ecosystem services. Therefore, conservation of endemic elements in representative ecosystems/habitats assumes a great significance while drawing conservation plans for the region.Towards achieving the above, we will have to shift towards contemporary conservation approaches, which include a paradigm of landscape level interconnectivity between protected area systems. The concept advocates a shift from the species-habitat focus to an inclusive focus on expanding the biogeographic range so that natural adjustments to climate change can proceed without being restrictive.Q.Consider the following statements:According to the passage, the adverse impact of climate change on an ecosystem can be a1. Permanent disappearance of some of its flora and fauna.2. Permanent disappearance of ecosystem itself. Which of the statements given above is/are correct?

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The cycling of elements in an ecosystem is called a) chemical cyclesb) biogeochemical cyclesc) geological cyclesd) geochemical cyclesCorrect answer is option 'B'. Can you explain this answer?
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