Q3 of 38 Page 167

Is the present day human population growth following a J-shaped curve of S-shaped curve?

If a graph of the human population is plotted against time, an S-shaped curve also known as a sigmoid curve, is obtained.

The following figure shows the sigmoid curve:



More from this chapter

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1

Name the three great cultural revolutions that favoured a steep rise in population.

 2

Mention two areas of medical sciences which have indirectly contributed to high growth in human population.

 1

Write any six factors which have contributed to a rapid rise in human population in recent times in the world.

 2

Give the approximate figures for the population in India in million at

(a) the beginning and


(b) the end of the twentieth century.