background
brown
cardboard
carton
conscious
container
copy
disposable
disposal
earth
eco
ecological
ecology
empty
environment
environmental
garbage
group
heap
industry
junk
many
material
object
organic
paper
pollution
protection
recycle
recycling
refuse
reusable
reuse
rolls
rubbish
sorting
space
table
text
toilet
trash
used
utilization
waste
wooden
world