What time period does the volume of A History of US cover?

Based on the information in the graph, what can you conclude about humans in the world in general?

According to a recent survey, the local government wants to classify people according to their income earning capacity. they want to do so in order to provide special facilities for the poor. who among the four individuals will be classified as poor? a. joseph earns $2.25 per day b. maria earns $1.50 per day c. rosita earns $2.00 per day d. tim earns $ 1.00 per day

Suggest 3 different reasons why there is an ageing population in the uk .