As estimated by Robert May, what is total number of species present on earth?
As estimated by Robert May, what is total number of species present on earth?
- A
$3 \;million$
- B
$5 \;million$
- C
$7\; million$
- D
$9 \;million$
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$-1{ }^{\circ} C , 13^{\circ} C$ annual variations in the intensity and duration of temperature and $50$ and $250 \;cm$ annual variation in precipitation, account for the formation of a major biome as
$-1{ }^{\circ} C , 13^{\circ} C$ annual variations in the intensity and duration of temperature and $50$ and $250 \;cm$ annual variation in precipitation, account for the formation of a major biome as
In this soil conservation method, several grasses are left out in soil after the crop is harvested.
In this soil conservation method, several grasses are left out in soil after the crop is harvested.
What is Red Data Book ?
What is Red Data Book ?
Number of wild life is continuously decreasing. What is the main reason of this?
Number of wild life is continuously decreasing. What is the main reason of this?
Full forms : $UNESCO$
Full forms : $UNESCO$