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प्रश्न
What is the sex ratio?
उत्तर
The number of females per 1000 males in a region is called sex ratio.
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संबंधित प्रश्न
The average life expectancy in India is increasing.
Explain the reasons of low sex ratio in India.
With the help of given statistical data prepare a simple bar graph and answer the following questions:
India – Trend of Urbanisation (1961-2011)
| Year | Percentage of Urban Population |
| 1961 | 18.0 |
| 1971 | 18.2 |
| 1981 | 23.3 |
| 1991 | 25.7 |
| 2001 | 27.8 |
| 2011 | 31.2 |
(1) What is the interval of the data?
(2) Which decade shows slow rate of urbanisation?
(3) Which decade shows high rate of urbanisation?
Explain the similarities and differences between the population distribution in Brazil and India.
Giving examples, correlate climate and population distribution.
What should be done so that our manpower is utilized properly, sex ratio improves and population growth is controlled? Write two to three sentences on each.
Expectancy of life is still less in developing countries.
Observe the following graph and answer the questions given below-
Brazil- % of population (2016)
- Which type of graph is this?
- Which age group has the highest population?
- Write class interval of age groups given on Y-axis.
- Whose number is more in males and females of age above 60?
- How much percent of females are found in age group of 55 to 59 years?
- After which age group is the decrease in population found?
Prepare a simple bar graph with the help of given statistical information and answer the questions given below-
Brazil-life expectancy
| Years | Life expectancy |
| 1960 | 54 |
| 1970 | 59 |
| 1980 | 61 |
| 1990 | 65 |
| 2000 | 70 |
| 2010 | 73 |
| 2016 | 75 |
Questions-
- What is the interval of years in the data?
- What is the difference in life expectancy of 1960 and 2016?
- Write five sentences about the analysis of graph.
Is there a relationship between increase in life expectancy and growth of population? If yes, how?
