underwater
animal
aquatic
bad
city
coastline
conservation
contaminated
danger
dead
dirty
earth day
ecological
ecology
environment
factory
fish
floating
garbage
global
green
hazard
hospital
industry
junk
life
marine
natural
nature
ocean
oxygen
planet
plastic
pollute
pollution
problem
recycle
rubbish
save
sea
sewage
town
toxic
trash
turtle
warning
waste
water
wild
wildlife