Which of the following seas has almost completely disappeared because of irrigation in the area ? A. The Aral Sea B. The Black Sea C. The Caspian Sea D. The Aegean Sea

your answer is "graduates" hope this

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.

propioception;

answereruption of molten material; magnetic stripes in the rock of the ocean floor; the age of the rocks themselves;