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Habitat loss and fragmentation, over exp...

Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for .

A

Population explosion

B

Migration

C

Biodiversity loss

D

Pollution

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The correct Answer is:
C
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Of the four major causes for the loss of biodiversity (Alien species invasion habitat loss and fragmentation, over-exploitation and co-extinctions ) Which according to you is the major cause for the loss of biodiversity ? Give reasons in support.

Biodiversity loss occurs due to (i) habitat loss and fragmentation (ii) co-extinction (iii) over-exploitation (iv) alien species invasion. (a) (i) and (ii) (b) (i), (ii) and (iii) (c) (ii), (iii) and (iv) (d) (i), (ii), (iii) and (iv)

Which of these is not example of alien species invasion ?

Mark true or false in the following statements. (i) Habitat loss and fragmentation is the most important cause driving animals and plants to extinction. (ii) Steller's sea cow has been extinct due to habitat loss. (iii) When alien species are introduced deliberated or unintentionally for whatever purpose, some of them turn invasive and cause extinction of indigenous species. (iv) When a host fish species becomes extinct its unique assemblage of parasites also meets the same fate.

Select the terms which are related to loss of biodiversity and considered under evil quartet - Co-extinction, proto-cooperation, over exploitation, predation, endemism, alien-species, invasion, habitat loss and fragmentation.

When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct. This phenomenon is referred to as (a) fragmentation (b) alien species invasion (c) over-exploitation (d) co-extinction

The main cause of extinction of species from tropical area is : (a) Over - exploitation (b) Deforestation (c) Alien species invasion (d) More than one option is correct

(a) Taking one example each of habitat loss and fragmentation, explain how are the two responsible for biodiversity loss. (b) Explain two different ways of biodiversity conservation.

Find the incorrect statement from the following . (a) Tropical rain forests cover around 6 percent of earth's land surface. (b) Animals with migratory habits are badly affected by habitat loss and fragmentation. (c) Mammals and birds require small territories. (d) Amazon rain forest is being cut and cleared for soya bean cultivation or for conversion to grasslands for raising beef cattle

ICSE-BIODIVERSITY AND ITS CONSERVATION-COMPETITION CORNER (OBJECTIVE TYPE QUESTIONS)
  1. Plants like Aegle marmelos, Ocimum sanctum and Ficus religiosa are a g...

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  2. Spot out the zone of our country considered as the hot spot of biodive...

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  3. Habitat loss and fragmentation, over exploitation, alien species invas...

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  4. Wildlife conservation aims at. I. Maintaining the ecological process...

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  5. Susceptibility to extinction is due to

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  6. In your opinion, which is the most effective way to conserve the plant...

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  7. If we remove half of the forest cover of earth, the crisis that will o...

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  8. Identify the correctly matched pair.

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  9. One of the most important functions of botanical gardens is that

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  10. The Indian wild ass is in the category of ......... by Wildlife Protec...

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  11. Indian rhinoceros are protected in

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  12. Name the first national park of India.

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  13. Which one of the following has maximum genetic diversity in India?

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  14. Chipko movement was launched for the protection of

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  15. Tiger is not a resident in which one of the following national park ?

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  16. Presently, total number of biodiversity hotspots in the world is (a)...

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  17. Which of the following is exotic species?

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  18. The historic convention on Biological Diversity held in Rio de Janeiro...

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  19. Biodiversity Act of India was passed by the Parliament in the year (...

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  20. Core zone, buffer zone and manipulation zone are found in

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