abandoned
auto
background
black
damaged
decay
destroy
dirty
dump
ecology
environment
garbage
group
heap
industry
kitchenmidden
lost
melee
nature
object
outdoor
pile
piled
pollutant
pollution
protection
recycle
recycling
repair
rotten
rubber
rubbish dump
safety
scramble
scrapheap dump
scrapyard
scrimmage
stack
store
tires
transport
trash
tread
truck
used
waste
wear
wheel
worn