Скачать или смотреть Chapter 6 Population NCERT Geography Most Important Extra Questions For Exam Part 2

Population

Chapter 6 Population NCERT Geography Most Important Extra Questions For Exam Part 2

Last year question answers population

extra questions for class 9 geography population

ncert solutions of population class 9


Growth of population refers to the change in
the number of inhabitants of a country/territory
during a specific period of time, say during the
last ten years. Such a change can be expressed
in two ways: in terms of absolute numbers and
in terms of percentage change per year.
The absolute numbers added each year or
decade is the magnitude of increase. It is
obtained by simply subtracting the earlier
population (e.g. that of 1991) from the later
population (e.g. that of 2001). It is referred to
as the absolute increase.
The rate or the pace of population increase
is the other important aspect. It is studied in
per cent per annum, e.g. a rate of increase of 2
per cent per annum means that in a given year,
there was an increase of two persons for every
100 persons in the base population. This is
referred to as the annual growth rate.
India’s population has been steadily
increasing from 361 million in 1951 to 1028
million in 2001.Since 1981, however, the rate of growth
started declining gradually. During this
period, birth rates declined rapidly. Still 182
million people were added to the total
population in the 1990s alone (an annual
addition larger than ever before).
It is essential to realise that India has a very
large population. When a low annual rate is
applied to a very large population, it yields a
large absolute increase. When more than a
billion people increase even at a lower rate, the
total numbers being added becomes very large.
India’s current annual increase in population
of 15.5 million is large enough to neutralise
efforts to conserve the resource endowment
and environment.
The declining trend of the growth rate is
indeed a positive indicator of the efforts of birth
control. Despite that, the total additions to the
population base continue to grow, and India
may overtake China in 2045 to become the
most populous country in the world.


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Part 3-   • CBSE Grade 9 Geography Chapter 6 Full Expl...