| List I (Concept) | List II (Definition) | ||
| A. | Density of population | I. | The working population participation in various occupations |
| B. | Sex Ratio | II. | Numbers of people in different age groups |
| C. | Age structure | III. | Ratio between the number of women and men |
| D. | Occupational Structure | IV. | Ratio between the numbers of people to size of land |
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. a healthy diet and regular exercise
Q. are important habits
R. that help maintain good physical and mental health
S. especially in today's busy world