bacteria
balloons
basic
beverages
bottle
containers
dirty
disease
distributing water
dung
environment
fluency
garbage
global problem
health
help
helpless
household garbage
humanity
humans
illness
industry
junk
life
liquid
living
modern
natural environment
people
plastic
pollution of the environment
poor
poverty
purification
recyclable
red
rubbish
sewage
standards
thrown
trash
trash stuff
two
unhealthy
unsafe
viruses
water
water pollution
water quality
water source