Age is a problem for both developing and developed countries justify this statement

Age is a problem for both types of countries, here's why

Explanation:

In developing countries age is a problem because this state has to provide jobs and care for growing children, and providing education for them is expensive and time consuming, not to mention basic needs like housing and food. It's hard for developed countries too because these countries have to deal with an older population that is declining in health. The state needs to provide assisted living and care for this part of the population.

c. seafloor spreading occurs.

d. crust becomes molten rock.

e. denser plates slide under lighter plates.