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प्रश्न
Why should we conserve biodiversity ? How can we do it?
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उत्तर
Biodiversity conservation is necessary because of the following reasons:
- Many commercially important products such as food, fibre and wood and countless industrial products are obtained from nature.
- Certain activities cannot be accomplished without the help of nature such as production of oxygen and pollination.
- Intangible benefits such as aesthetic pleasure are derived from nature.
- Conserving the species we share our planet with and passing the rich legacy of biodiversity to our future generations is our ethical duty.
Biodiversity can be conserved by the following means:
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In situ conservation - In order to conserve biodiversity, some of the world’s biodiversity hotspots (with high degree of biodiversity and endemism) have been identified and are being protected. In India, biosphere reserves, wildlife sanctuaries and national parks are built for this purpose.
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Ex situ conservation - The threatened species of plants and animals are taken out of their habitats and are kept in special settings such as zoological parks, botanical gardens and wildlife parks.
Nowadays, the gametes of endangered species can be viably preserved by methods such as cryopreservation and can be fertilised in vitro, followed by propagation through tissue culture methods. Similarly, seeds can be preserved in seed banks.
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संबंधित प्रश्न
What are sacred groves?
'in-situ' Conservation can help endangered/threatened species. Justify the statement.
What do you understand by ‘hotspots’?
What is common to the techniques;-
- In vitro fertilisation
- Cryopreservation
- Tissue
- Culture
What is an ecosystem service? List any four important ecosystem services provided by the natural ecosystems. Are you in favour or against levying a charge on the service provided by the ecosystem?
Describe the consumptive use value of biodiversity as food, drugs and medicines, fuel and fiber with suitable examples.
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.
Explain the role of any two biocontrol agents by mentioning their target pests.
