bag
clean
conservation
day
dirt
dirty
dispose
dry twigs
dump
dumped
dumping
earth
ecology
environment
environmental
forest
garbage
grass
green
heap
illegal
industry
junkyard
landfill
litter
littering
nature
nobody
open
packages
pile
planet
poland
pollution
protection
recycle
recycling
road
rubbish
sand
scrap
spring
stick
threaten
tip
trash
up
waste
woods
world