adult
bag
care
caucasian
charity
child
clean
collect
collection
conservation
day
earth
eco
ecology
environment
family
garbage
girl
group
happy
kid
litter
little
looking at camera
nature
outdoor
park
people
person
picking
plastic
pollution
portrait
protection
recycle
recycling
reuse
rubbish
scavenge
scavenger
smile
social
together
trash
utilization
volunteer
volunteering
waste
work
young