barrel

bin

black

board

can

clean

concept

container

disposal

drop

eco

ecological

ecology

education

empty

environment

garbage

girl

green

grid

hand

litter

litterbin

litterbox

nature

outside

paper

person

place

plastic

pollution

prevent

protect

public

recycable

recycle

recycling

reduce

reuse

rubbish

throw

trash

trashcan

uhd

waste

wastepaper

woman