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प्रश्न
Since the origin of life on Earth, there were five episodes of mass extinction of species.
How is the ‘Sixth Extinction’, presently in progress, different from the previous episodes?
उत्तर
The current rate of extinction is 100–1000 times faster than pre-human times. It seems that the Earth is heading for the sixth extinction, but it would be anthropogenic.
It is believed that (a) Tropical forests are losing 2–5 species per hour or 14,000–40,000 species per year. (b) Ten high diversity localities of tropical forests covering 3,00,000 km2 area are liable to lose 17,000 endemic plant species and 3,50,000 endemic plant species in the near future. (c) If the current rate of species extinction goes on unabated, then 50% of species are liable to die out by the end of the 21st century.
संबंधित प्रश्न
Many plant and animal species are on the verge of their extinction because of loss of forest land by indiscriminate use by the humans. As a biology student what method would you suggest along with its advantages that can protect such threatened species from getting extinct ?
Since the origin of life on Earth, there were five episodes of mass extinction of species.
Who is mainly responsible for the 'Sixth Extinction’?
Since the origin of life on Earth, there were five episodes of mass extinction of species List any four points that can help to overcome this disaster.
Give a reason for the Following:
Equilibrium of a forest ecosystem can be disturbed by uncontrolled hunting of big predators.
