Page 52 - University English for non-speacalist
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another region. The data collected by demographers is
often displayed in graphics forms that allow the reader
to see the total picture and to understand the often
complicated statistics and ratios at a glance.
Answer the following questions:
1- What is meant by "demography"?
2- What is meant by "doubling time"?
3- What is the importance of knowing the total
fertility ratio?
4- What is the importance of knowing life
expectancy and the infant mortality ratio?
5- What is meant by emigration and immigration?
6- In what way the data collected by demographers
is helpful in building societies.
7- Translate the last paragraph?
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