Rapid population growth
Economic
depressions
7.
?
The prospect of
inexpensive land
Foreign trade
opportunities
During the 1840s the factors in this diagram contributed to widespread support for
which of the following?

Manifest destiny

Explanation:

Cant be any other option

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; the changing age structure of the population;