Question

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hiths the deach 5 Exsin whar will happen to the sanded of iving i the human populasioe growth is noe checked? Can the carying capacity of the world be indefinisely increased Expli 8 What willsuch an aid program do so & the population growth curve of country Y? b the carrying capacity of its environmenc? c Is this s real or aroficial increase in the carrying capacity Expiain 18 If country Y has net appreciably increased its agricubtural efficiency and economy after 25 years, what would nesult if the aid from country X was suddenly terminated 19 Whst type of aid program will best benefis country Y? Why? 115 will deaths increase to rate of the human population, Ifnothing is done to reduce the growth equal births? 13. Describe what this will do to the growth aurve? to level ofthe human population growth curve than increasing the death rate? 15. Are there any other ways to redace population growth? t6. Eaplain what will bappen to the standard of living if the human population growth is not 14. Since population growth ceases only when deaths equal or exceed births, what is a better way checked? 17. Can the carrying capacity of the world be indefinitely increased? Explain 18. What will such an aid program do to: a the population growth curve of country Y? b the carrying capacity of its environment? c. Is this a real or artificial increase in the carrying capacity? Explain. 18. If country Y has not appreciably increased its agricultural efficiency and economy after 25 years, what would result if the aid from country X was suddenly terminated? 19. What type of aid program will best benefit country Y? Why?

Answer 1

13-Information of the death and survivor of a population with respect to age is represented in the form of table is known as life table .The term population growth refers to change in the number of individual in a population with time .Change in population is determined by four factors- birth,death , emigration and immigration.Growth curve are mainly 2 type -

(1)Exponential Growth- A population shows exponential growth if there is no limitation on growth. All members have abundant resource availability and the population displays its intrinsic rate of increase .The exponential form of growth may be represented by the simple model based on exponential equation:-

dN/dt=rN

Where N is the population size and r is the intrinsic rate of natural increase.It is defined as the rate of increase per individual under the specified physical condition , in an unlimited environment .It is also described as the maximum potential of reproduction in an individual in a particular set of condition. When food and space in a habitat are unlimited , all members of a species have the ability to grow exponentially.

(2) Logistic Growth- The growth of a population eventually slow as the population reaches the carrying capacity of the environment. This result in an S-shaped curve of population growth known as Verhulst-Pearl logistic growth.

If the rate of mortality is constant at all age group, so that an individual chance of living another year is just as a good at one age as another .This curve is found in birds and human being exposed of poor nutrition and hygiene.