What are three properties of matter that are used to sort materials during the single-stream recycling process?

I would say that the three types of matter in a single stream re-cycling process would be paper/cardboard, plastic and glass primarily. The separation of materials for recycling is very important to ensure that new products can be manufactured from the used ones, like fence posts from the white plastic say of margarine containers as an example.

Its strengthits conductivity of heat and electricity its shiny colourmalleable and ductility

Sorry i dont understand the question can you rephase it?