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birth rate equals date rate. emmigratio...

birth rate equals date rate. emmigration equqls immigration if population is same in both places. doubling time is 33 yrs both 1 and 2

A

Birth rate equals death rate

B

Emigration equals immigration if population is same, in both places

C

Doubling time is 33 years

D

Both (1) & (2)

Text Solution

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The correct Answer is:
D
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Statement I : According to the 2001 census report , the population growth rate was still around 1.7 % . Statement I : At this rate if population increases then or population could double in 33 years.

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Knowledge Check

  • Island biogeography theory states that the number of species on an island is determined by immigration rates of new species to the island and extinction rates of species on the island. Immigration rates to an island decline as its distance from the mainland increases adn extinction rates decreases with increasing island size. when the immigration and extinction rates on an island are equal, the number of species on the island reaches equilibrium. Which of the following gives the correct combination of distance (near and far) and area (small and large of islands where species (S_(1) -S_(4)) occur ?

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