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UPSC 2011: If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because
(a)the soil of rain forest is deficient in nutrients
(b)propagules of the trees in a rain forest have poor viability
(c)the rain forest species are slow-growing
(d)exotic species invade the fertile soil of rain forest
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Not attemptedCorrect Answer: (a) the soil of rain forest is deficient in nutrients
Most nutrients in a tropical rain-forest are locked up in the biomass; the underlying oxisol/ultisol soils are heavily leached, acidic and nutrient-poor. Once the canopy is cleared, rapid leaching leaves little fertility for new growth, so regeneration is slow. Hence option (a) is the correct explanation, while the other reasons are secondary or incorrect. ([studyadda.com](https://www.studyadda.com/solved-papers/solved-paper-general-studies-2011_q79/771/355508?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2011 Environment & Ecology question?▼
The correct answer is option (a): the soil of rain forest is deficient in nutrients. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Ecosystems & Ecology Concepts question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2011, GS Paper 1, as Question 23. It falls under Environment & Ecology > Ecosystems & Ecology Concepts.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Ecosystems & Ecology Concepts?▼
UPSC has asked 48 questions from Ecosystems & Ecology Concepts (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.