Relate the Crusades to exploration in the East.

One major reason for exploration to the East was the Crusades.

Explanation:

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The Crusades

Explanation:

One major reason for exploration to the East was the Crusades.

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.