Question

why do we discuss crude birth and death rates in environmental science? it is too difficult to calculate the regular death rate. it allows us to compare the populations of different countries. it is too difficult to calculate the regular birth rate. it allows countries more control over their birth and death rates.

Explanation:

Crude birth/death rates (per 1,000 people) standardize data by population size, enabling cross-country comparisons of demographic trends—critical for environmental science analyses of population-environment interactions. Other options are incorrect: regular rates are not inherently harder to calculate, and these rates do not grant countries control over birth/death trends.

Answer:

B. It allows us to compare the populations of different countries.