What does population decline lead to

Explanation:

A nation's population declines when the fertility rate drops, which results in the aging of the population and a reduction in the size of the young labor force. As a result, society gradually loses the creativity and aggressiveness associated with younger people.

aging of the population and a reduction in size of the young labor force losing less creativity and agression with young people

81 is a composite number.

answergeosphere;