activist

adult

altruism

bag

black

bottle

cleaning

cleanup

collecting

community

concept

cropped

daytime

disposal

ecological

ecosystem

environment

female

garbage

gathering

girl

grass

green

ground

help

lawn

litter

natural

outside

paper

park

picking

planet

plastic

pollution

problem

protect

recycling

renewable

resource

reuse

rubbish

teens

trash

utilization

volunteer

waste

woman

work

young