The population of a country has been decreasing for several decades. in 1990, the population was about 138 million people. in 2010, the population was about 131 million people. determine the percent decrease in the country's population during this time period. the country's population decreased by about nothing % during this time period.

The country's population decreased by about 5.07% during this time period.

Explanation:

A natural decrease occurs when the death rates fall below the birth rates. Reduction of fertility rates can occur because families choose to have fewer children due to adults following careers or introduction of contraception. If life expectancy increase due to improved health care then a lot of the countries population will be elderly dependand age range has a high death rate.

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