Answer:
https://www.nationalgeographic.org/encyclopedia/ozone-layer/
Explanation:
They are increasing due to longer life expectancies, because of the increase of technology, and the increase of regulations in the workforce ex. Britian in the Industrial revolution
Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term.
Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term. Population density is the concentration of individuals within a species in a specific geographic locale. Population density data can be used to quantify demographic information and to assess relationships with ecosystems, human health, and infrastructure.