9
apple
banana
basket
bones
broom
cans
cap
clean
cleaning
collection
conservation
container
core
dirt
dump
dumping
dust
dustbin
ecology
element
environment
equipment
fish
flat
garbage
graphic
icon
illustration
junk
object
office
package processing
peel
protection
purification
recycle
reduce
rubbish
set
sewage
shadow
shovel
sign
symbol
trashcan
truck
types
waste