tart
background
bottle
broken
can
caution
chemistry
clean
container
country
cup
dirty
disaster
dispose
drink
dump
ecology
environment
environmental
field
forest
garbage
glasses
grass
green
industry
jump
junk
litter
material
metal
nature
nobody
object
open
pine
plastic
pollution
problem
protection
recycling
reusing
rubbish
rusteaten
snow
threaten
trash
tree
up
waste