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What do you understand by ‘hotspots’? - Geography

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प्रश्न

What do you understand by ‘hotspots’?

संक्षेप में उत्तर

उत्तर

Some areas are richer in species than others. Areas rich in species diversity are called hotspots of diversity. Hotspots are defined according to their vegetation. Plants are important because these determine the primary productivity of an ecosystem. Most, but not all, of the hotspots rely on species-rich ecosystems for food, firewood, cropland, and income from timber. In Madagascar, for example, about 85 percent of the plants and animals are found nowhere else in the world.

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अध्याय 16: Biodiversity and Conservation - Exercises [पृष्ठ १३६]

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एनसीईआरटी Fundamentals of Physical Geography [English]
अध्याय 16 Biodiversity and Conservation
Exercises | Q 2. (iii) | पृष्ठ १३६

संबंधित प्रश्न

List any four techniques where the principle of ex-situ conservation of biodiversity has been employed.


Among the ecosystem services are control of floods and soil erosion. How is this achieved by the biotic components of the ecosystem?


Define PAR(photosynthetically active radiation)


Write a short note on Chipko Movement.


There are many animals that have become extinct in the wild but continue to be maintained in Zoological parks.
(i) What type of biodiversity conservation is observed in this case?
(ii) Explain any other two ways which help in this type of conservation.


List six advantages of the "ex-situ' approach to conservation of biodiversity.


In which one of the following countries, the ‘Earth Summit’ was held?


Most abundantly distributed organic substance of the biosphere is ______.


The vascular bundles, which are usually surrounded by a well-developed sclerenchymatous sheath present in:


Which one of the following is not included under in-situ conservation?


Which of the following is the contractile protein of a muscle?


What is common to the techniques;-

  1. In vitro fertilisation
  2. Cryopreservation
  3. Tissue
  4. Culture

How many hotspots were initially identified in the world?


Amazon rain forests are considered as 'Lungs of the planet' as they contribute ______ of the total oxygen in the earth's atmosphere.


What is common to the techniques (i) in vitro fertilisation, (ii) Cryo preservation and (iii) tissue culture?


Define the terms endemism


Humans benefit from diversity of life. Give two examples.


What are sacred groves and their role in biodiversity conservation?


Which one of the following areas in India, is a hotspot of biodiversity?


The region of biosphere reserve, which is legally protected and where no human activity is allowed is known as ______ .


Which one of the following is not a method of in situ conservation of biodiversity?


"Biodiversity plays a major role in many ecosystem services that nature provides."

Describe any two broadly utilitarian arguments to justify the given statement.


"Biodiversity plays a major role in many ecosystem services that nature provides."

State one ethical reason for conserving biodiversity.


The red panda has been listed as an endangered species on the IUCN Red List since 2015. Regional captive breeding programmes have been established in the zoos around the world to protect the red panda from extinction.
  1. Classify the biodiversity conservation programme referred to above.
  2. Mention any other two methods of conservation which belong to the same category.

Explain the role of any two biocontrol agents by mentioning their target pests.


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