What does morality refer to? The income level of people in a country the incidences of death in a country's population the impact of new laws on country's population the number of years people attended School in a country

b) the incidences of death in a country's population

Explanation:

Definition of mortality (according to Oxford dictonary),

The number of deaths in a given area or period, or from a particular cause

could you go a bit more in depth with you question? it's quite hard to understand. as soon as you do that i will be glad to : )

answer; the cats meowing will temporarily increase, but then it will decrease;