The diagrams show birth rate $$\((\mathrm{BR})\)$$ and death rate $$\((\mathrm{DR})\)$$ in three countries, $$\(\mathrm{X}, \mathrm{Y}\)$$ and $$\(Z\)$$, in two years, 1 and 2. There was no migration. Where was there a rise in population in year 1 and a fall in population in year $$\(2 ?\)$$

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