What does it mean if a nation has a high dependency rate? A.
The nation has a large number of children, whose families must provide for them.
B.
The average age of the population is over 30.
C.
The nation's population is shrinking due to a low birth rate.
D.
The nation enjoys a high life expectancy and must assist elderly members of society.

A. The nation has a large number of children, whose families must provide for them.

...and...

D. The nation enjoys a high life expectancy and must assist elderly members of society.

Explanation:

A high dependency rate means too many people taking and not enough producing. There are other possibilities, but not listed here.

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

answer; ( correlation );