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प्रश्न
What could have triggered mass extinctions of species in the past?
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उत्तर
- Volcanic eruption
- Earthquake
- Extremes of temperatures
- Glaciations
- Continental drift
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संबंधित प्रश्न
Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?
With the help of any one example explain Alien species invasion as one of the causes of Biodiversity losses.
Enlist any six categories into which a given species is placed once it has been thoroughly evaluated by IUCN.
Which of the following is not a cause for loss of biodiversity?
Match the following columns.
| Column - I | Column - II |
| (i) Dodo | (a) Africa |
| (ii) Ouagga | (b) Russia |
| (iii) Thylacine | (c) Mauritius |
| (iv) Stellar's sea cow | (d) Australia |
Choose the correct match from the following
What is common to lantana Eichhomia and African catfish?
Which of these is NOT amongst the effects of loss of biodiversity?
IUCN means
Explain as to how protection of biodiversity hot spots alone can reduce up to 30% of the current rate of species extinction.
Gametes of threatened species can be preserved in viable and fertile conditions for long periods using ______.
Decline in the population of Indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be catogoriesd as ______.
What is ex-situ conservation?
Which one of the following is a pair of endangered species?
The sixth extinction in progress currently is different from all previous extinctions on earth as it is ______.
Name any two factors responsible for the loss of biodiversity in a geographical region.
Which of the following pairs correctly represents examples of alien species invasion?
When one species becomes extinct and another species closely associated with it also disappears, this phenomenon is called:
Which of the following is an example of a species in the 'Least Concern' (LC) IUCN category?
