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प्रश्न
What criteria should one use in categorizing a species as threatened?
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उत्तर
The criteria that should be used in categorising a specials as threatened are
- Number of the members of the species is declining at an alarming rate.
- Their habitat is being modified or destroyed.
- Predator or poacher activities are increasing.
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संबंधित प्रश्न
Which among the following is/are the type( s) of extinction of species?
Which among the following is a TRUE statement?
Accroding to IUCN Red list, the status of Antilope is ____________.
What do you understand by ‘exotic species’?
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 the following statements is correct?
Which of the following are major causes of species losses in a geographical region?
What could have triggered mass extinctions of species in the past?
What is common to the species shown in figures A and B?
 |
 |
| A | B |
Explain the concept of "co-extinction" by taking two examples.
How can you, as an individual, prevent the loss of biodiversity?
List any three major causes of loss of biodiversity.
"Forests provide intangible benefits to us." Explain by taking three different areas, how.
The species placed in CR category is ______.
Match the species in Column I with its category in Column II.
| Column I | Column II |
| A. Rare species | I. No species |
| B. Vulnerable species | II. Facing a high risk of extinction |
| C. Endangered species | III. Localised species |
| D. Extinct species | IV. Species under threat |
Choose the correct answer from the options given below.
Mention any two places where the ex-situ conservation is undertaken.
Give definitions of Extinct species.
Give definitions of Endangered species.
