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प्रश्न
Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?
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उत्तर
When alien species are introduced unintentionally or deliberately for whatever purpose, some of them turn invasive and cause the decline or extinction of indigenous species. Invasive weed species like carrot grass, lantana and hyacinth (Eicchornia) have become a threat to the environment and other native species. Similarly, the recent illegal introduction of the African catfish Clarias gariepinus for aquaculture purposes is threatening the indigenous catfishes in our rivers. We have to deliberately extinct these harmful species. Similarly, we aim to make the world polio-free by eradicating various viruses, including the polio virus.
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संबंधित प्रश्न
Dodo bird, stellar sea cow and passenger pigeon are few examples of extinction due to ______.
Acronym for IUCN is ____________.
Which among the following is an exception to invasive species?
Which among the following is an in situ conservation method for national genetic resources?
Which one of the following is a natural cause of extinction of flora and fauna?
What are the major factors that are responsible for the loss of biodiversity? What steps are needed to prevent them?
Which of the following is not a cause for loss of biodiversity?
Which among the following forests is known as the "lungs of the planet earth"?
Which of these is NOT amongst the effects of loss of biodiversity?
Match the animals given in column I with their location in column II:
| Column I | Column II |
| A. Dodo | i. Africa |
| B. Quagga | ii. Russia |
| C. Thylacine | iii. Mauritius |
| D. Stellar's sea cow | iv. Australia |
Choose the correct match from the following:
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?
Explain as to how protection of biodiversity hot spots alone can reduce up to 30% of the current rate of species extinction.
Discuss one example, based on your day-to-day observations, showing how loss of one species may lead to the extinction of another.
How can you, as an individual, prevent the loss of biodiversity?
Though the conflict between humans and wildlife started with the evolution of man, the intensity of conflict has increased due to the activities of modern man. Justify your answer with suitable examples.
There was a loss of biodiversity in the ecosystem due to a new construction project in that area. What would be its impact on the ecosystem? State any three.
Enlist two criteria that are used to identify a region for maximum protection as 'Biodiversity hotspots'.
"Forests provide intangible benefits to us." Explain by taking three different areas, how.
Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species?
Consider the following statements:
- Statement I: Endemism and accelerated habitat loss are characteristics of biodiversity hotspots.
- Statement II: Gene bank is an in-situ method of biodiversity conservation.
Choose the correct answer from the options given below.
Red Data Book is maintained by ______.
Which of the following regions of the globe exhibits highest species diversity?
Give definitions of Extinct species.
Give definitions of Endangered species.
Write any three criteria on which different types of reflexes are based.
What are the reasons for loss of biodiversity?
Name any two factors responsible for the loss of biodiversity in a geographical region.
