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प्रश्न
"Analysis of age-pyramids for human population can provide important inputs for long-term planning strategies." Explain.
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उत्तर
Analysis of age pyramids for human population can provide important inputs for long-term planning strategies. The different age groups present in a population determine its reproductive status.
Distribution of age groups highly influences the growth of the population. Each population displays following three ecological ages or age groups:
- Pre-reproductive
- Reproductive
- Post-reproductive
Population having large number of young members grow rapidly, while, the population bearing more number of post-reproductive members tends to be declining. There are basically three types of age pyramids found to be present in human population. These are as follows:
Therefore, through the thorough analysis of the age pyramids of a particular population, the distribution of resources can be done more efficiently. A better planning strategy can be adopted considering the demand of the resource; thus, long-term management of resources can be done in such a way that the population can derive maximum benefit with minimum effects on nature, leading the population to flourish efficiently.
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संबंधित प्रश्न
Represent diagrammatically three kinds of age-pyramids for human populations.
How does an age pyramid for human population at given point of time helps the policy-makers in planning for future.
List the attributes that populations but not individuals possess.
Study the flow chart given below and complete the equation that follows by identifying 1, 2, 3 and 4.

Nt + 1 = Nt + {(1+ 2) − (3 + 4)}
Mention the different ways by which the population density of different species can be measured.
Animals that can move from fresh water to sea called as ________.
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Banyan

What type of population growth is represented by the above age pyramid?
The following diagrams are the age pyramids of different populations. Comment on the status of these populations.

Write the best method to measure the population density of a single Banyan tree in comparison to Partlzenium weeds in a forest by an ecologist. Explain and justify your answer.
