Advertisements
Advertisements
प्रश्न
What could have triggered mass extinctions of species in the past?
Advertisements
उत्तर
- Volcanic eruption
- Earthquake
- Extremes of temperatures
- Glaciations
- Continental drift
APPEARS IN
संबंधित प्रश्न
What are the major causes of species losses in a geographical region?
Give any 'two' examples of endangered species
Species that possess a very high risk of extinction due to rapid population decline of about 50 - 70 % over three generations is designated as ______.
Species that possess a very high risk of extinction due to population decline of about 30 - 50 % over past 10 years are categorized as _______.
Which among the following is/are the type( s) of extinction of species?
Currently, ______ mass extinction is considered to be the progressing at an alarming rate due to the loss of biodiversity.
'The Evil Quartet' is a concept which describes the ______.
What is common to lantana Eichhomia and African catfish?
Which among the following forests is known as the "lungs of the planet earth"?
IUCN means
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?
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.
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.
Which of the following suits hotspots in ecological terminology?
Gametes of threatened species can be preserved in viable and fertile conditions for long periods using ______.
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.
Many species like Stellar's Sea cow and passenger pigeon have been driven to the brink of extinction. Which of the following describes this situation?
Give definitions of Invasive species.
Over-exploitation as a cause of biodiversity loss is best exemplified by which of the following?
