Less children are being born due to increased efforts to lower the CBR (crude birth rate) and improve contraceptive methods. This results in less children being born, meaning that the older people are increasing in dependency (because there's more older people in the older generations vs the newer)
Heat convection. Convection is heat transfer by mass motion of a fluid such as air or water
He protested against the sales of indulgences.
Alpine biomes are the highest biomes
