the average life expectancy in the past 100 years was?

Question

choices:

decreases by 10 years

increased by 10 years

nearly doubled

nearly tripled

Answer 1

increased by 10 years.

Answer 2

That really depends on WHERE in the world you are talking about. There are places where life expectancy has nearly doubled (much of the western world) and others where it has stayed about the same or even decreased (much of Africa).