The four main causes of world war i were alliances, nationalism, imperialism, and (1 point) communism militarism fascism depression

militarism

Explanation:

Nationalism, Alliances, imperialism, and militarism were all long term causes of World War I.

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 sons of liberty;