environmental
animal
aquatic
bad
bad pollution
canal
contaminate
contaminated
contaminated water
danger
dangerous
dark
dead
death
dirty
ecological
ecology
ecosystem
environment
fish
float
fly
food
fumble
fumbling
harmful
lake
natural
nature
poison
pollute
polluted
polluted water
pollution
pond
problem
river
rotten
sewage
smell
stink
toxic
waste
wastewater
water
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