1. It is necessary to use rates instead of numbers when comparing birth and death rates because rates provide a relative measure that takes into account the size of the population. Numbers alone do not consider the population size and can be misleading when comparing countries with different population sizes.
2. The Natural Increase Rate (NIR) is a measure of population growth that takes into account the difference between birth rates and death rates. The formula for calculating the NIR is:
NIR = (Birth Rate - Death Rate) / 10
3. To compare the NIR for Canada, Togo, and Japan, you would need to look at the birth rates and death rates for each country. Calculate the difference between the birth rate and death rate for each country using the formula for NIR. Then compare the resulting NIR values to see which country has the highest or lowest population growth rate. This comparison can provide insights into the demographic trends and population dynamics of each country.
