Connect issues important in the United States between 1877 and 1900 to the present. 5 to 7 sentences please

answer; (i-o) psychologist

c. reserves power to the states and people

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.