che-mist	chemist
con-cern-ed	concerned
con-su-mer	consumer
de-com-pose	decompose
de-gra-da-ble	degradable
ex-pe-ri-men-ting	experimenting
is-sue	issue
land-fill	landfill
ma-te-ri-al	material
pa-tent	patent
plant	plant
po-ly-e-thy-lene	polyethylene
pro-duc-tion	production
rough-ly	roughly
so-lu-tion	solution