What does a greenstone indicate about the plate tectonic environment in which it formed?

A greenstone indicate subduction zones in the plate tectonic environment in which it formed. It is a metamorphosed volcanic rock that forms at a subduction zone. Hope this answers the question. Have a nice day. Feel free to ask more questions.

The three sociological perspectives include the beginner’s mind, culture shock, and the sociological imagination

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.