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100 questions in this collection · Page 6 of 10
Question 51 of 100
📘 CLASS XII
Biodiversity And Conservation
Which of the following are categorized as broadly utilitarian arguments or intangible benefits of biodiversity conservation?
I. The aesthetic pleasure of walking through thick woods. II. Watching spring flowers in full bloom. III. Waking up to a bulbul's song in the morning. IV. Obtaining direct industrial products like tannins and perfumes.
Which of the options represents the correct statements?
Statements I, II, and III are intangible aesthetic benefits and belong to the broadly utilitarian argument. Statement IV is a direct economic benefit and belongs to the narrowly utilitarian argument.
Question 52 of 100
📘 CLASS XII
Biodiversity And Conservation
Consider the following statements regarding the ethical argument for conserving biodiversity:
I. It relates to what we owe to millions of plant, animal, and microbe species with whom we share this planet. II. Every species has an intrinsic value, even if it has no current economic value to humans. III. We have a moral duty to care for the well-being of all co-inhabitants and pass on our biological legacy in good order to future generations.
Which of the statements given above are correct?
All three statements are correct. The ethical argument emphasizes the intrinsic value of every species and humanity's moral responsibility to conserve biodiversity for present and future generations.
Question 53 of 100
📘 CLASS XII
Biodiversity And Conservation
Study the definitions of in situ and ex situ conservation approaches:
I. In situ conservation is an on-site approach where we protect the whole ecosystem to protect its biodiversity at all levels. II. Saving the entire forest to save the tiger is a classic example of ex situ conservation. III. Ex situ conservation is an off-site approach desirable when an organism faces a very high risk of extinction in the wild in the near future and needs urgent, special measures.
Which of the statements given above are correct?
Statements I and III are correct. In situ (on-site) conservation protects the entire natural habitat. Ex situ (off-site) conservation is adopted when a threatened species requires urgent protection under human care. Statement II is incorrect because saving the forest to save the tiger is an example of in situ conservation.
Question 54 of 100
📘 CLASS XII
Biodiversity And Conservation
With reference to the conflict between development and conservation, read the following statements:
I. Many nations find it realistic and economically highly feasible to conserve all of their biological wealth. II. Invariably, the number of species waiting to be saved from extinction far exceeds the conservation resources available. III. This resource-species mismatch was addressed globally by identifying biodiversity hotspots for maximum protection.
Which of the statements given above are correct?
Statement I is incorrect because conserving all biological wealth is often unrealistic and economically difficult. Statements II and III are correct and explain the rationale behind the biodiversity hotspot approach.
Question 55 of 100
📘 CLASS XII
Biodiversity And Conservation
Consider the following statements regarding biodiversity hotspots:
I. Hotspots are regions characterized by very high levels of species richness and a high degree of endemism. II. Endemism means species are confined to a specific region and not found anywhere else. III. These hotspots are also regions of highly stable habitats with negligible habitat loss.
Which of the statements given above are correct?
Statements I and II are correct. Statement III is incorrect because biodiversity hotspots experience accelerated habitat loss and therefore require urgent conservation.
Question 56 of 100
📘 CLASS XII
Biodiversity And Conservation
Evaluate the statistics and examples of global and national biodiversity hotspots:
I. Initially 25 biodiversity hotspots were identified, but subsequently 9 more were added, bringing the total to 34. II. Western Ghats and Sri Lanka, Indo-Burma, and Himalaya are the three hotspots covering India. III. All biodiversity hotspots together cover more than 10 per cent of the Earth's land area.
Which of the statements given above are correct?
Statements I and II are correct. Statement III is incorrect because biodiversity hotspots together occupy less than 2% of the Earth's land area.
Question 57 of 100
📘 CLASS XII
Biodiversity And Conservation
Read the following statements about the impact of protecting biodiversity hotspots:
I. Although hotspots cover less than 2 per cent of the Earth's land area, they collectively harbour an enormous number of species. II. Strict protection of these hotspots could reduce ongoing mass extinctions by almost 30 per cent. III. Hotspots are identified primarily because they have the lowest species richness.
Which of the statements given above are correct?
Statements I and II are correct. Statement III is incorrect because hotspots are identified due to exceptionally high species richness and endemism, along with severe habitat loss.
Question 58 of 100
📘 CLASS XII
Biodiversity And Conservation
Consider the legal protection structures of in situ conservation in India:
I. Ecologically unique and biodiversity-rich regions in India are legally protected as biosphere reserves, national parks, and wildlife sanctuaries. II. India has 14 biosphere reserves, 90 national parks, and 448 wildlife sanctuaries. III. Wildlife sanctuaries provide ex situ protection where animals are kept in controlled enclosures for breeding.
Which of the statements given above are correct?
Statements I and II are correct. Statement III is incorrect because wildlife sanctuaries are examples of in situ conservation where species are protected in their natural habitats.
Question 59 of 100
📘 CLASS XII
Biodiversity And Conservation
Study the following statements regarding the cultural and religious traditions of nature protection in India:
I. In many Indian cultures, tracts of forest were set aside, and all the trees and wildlife within were venerated and given total protection. II. Such protected forest tracts are called sacred groves. III. Sacred groves are highly degraded environments where human logging is legally promoted.
Which of the statements given above are correct?
Statements I and II are correct. Statement III is incorrect because sacred groves are protected community forests where logging is prohibited.
Question 60 of 100
📘 CLASS XII
Biodiversity And Conservation
Match the following sacred groves of India with their respective geographical regions:
I. Khasi and Jaintia Hills – Meghalaya II. Aravalli Hills – Rajasthan III. Western Ghat regions – Karnataka and Maharashtra IV. Sarguja, Chanda, and Bastar areas – Madhya Pradesh
Which of the pairings given above are correct?
All four pairings are correct. These regions are well-known locations of sacred groves in India and contribute significantly to biodiversity conservation.