Which are mixtures? check all that apply.
copper sulfate
powdered sulfur and copper filings
iron oxide
cranberry juice
air
sugar
beryllium

A mixture is a material which is made up of two or more different compounds which are mixed together but they are not chemically combined. There are two types of mixture: homogeneous and heterogeneous mixtures.  Constituents of mixtures can be separated. In the question given above, the mixtures included are: POWERED SULFUR AND COPPER FILLINGS, AIR AND CRANBERRY JUICE.

While unproven, it uses facts to support part of a conclusion. it is still factual and has predictive power, however.