An important and as yet unanswered question is what role recycled water plays in the preservation of an existing ecosystem such as a forest.
(yet unanswered question; is; what role recycled water plays in the preservation of an existing ecosystem such as a forest) Context(yet unanswered question is,List([20, 46))):(recycled water; plays; L:in the preservation of an existing ecosystem such as a forest)
yet unanswered question is,List([20, 46))
yet unanswered question recycled water
is plays
what role recycled water plays in the preservation of an existing ecosystem such as a forest
L:in the preservation of an existing ecosystem such as a forest