Water pollution.
Schlüsselwörter
bottle,
chemical,
chemistry,
cleanup,
cruel,
danger,
dirty,
environment,
garbage,
horror,
impure,
lake,
material,
nature,
oil,
oil industry,
plastic,
poisonous organism,
pollution,
problem,
river,
rotting,
sea,
sewage,
smelling,
stream,
toxic substance,
ugliness,
unhygienic,
water
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