Carefully observe the shape of the age-sex population pyramid for four countries. Which of them most likely represents the pyramid for Indian population?
1. | 2. | ||
3. | 4. |
If a new habitat is just being colonized, which of the following is most likely to contribute to an increase in the population density?
1. | Birth rate | 2. | Death rate |
3. | Immigration | 4. | Emigration |
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