Is plastic is substance, homogenous or heterogineous mixture

Plastic is compound not the substance because substance is consist of mixture . It may be homogeneous due to plastic beads in molten state are in equal ratio

Explanation:

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

56 moles of   lieter in chemistry