Gleaning is the act of collecting leftover crops from farmers' fields after they have been commercially harvested or on fields where it is not economically profitable to harvest, is a practice described in the Hebrew Bible that became a legally enforced entitlement of the poor in a number of Christian kingdoms.
Much of the region is an ancient highland, but there is basaltic bedrock near Cooma and Nimmitabel that produce the only true chernozems in the whole continent, which are some of the best soils in Australia.
Greenland is in North America. Iceland is split between the North American and European geographic continent. Iceland however is mostly European, politically and culturally. Greenland is on the geographic continent but probably European the same way Icelenad is (just a guess). The answer depends on the definition you come up with for continent.