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they sink
the drain.
They sink.
they sink
it will sink of it will float.
a flood then the water goes through
The band will sink.
The marble will sink.
the signal goes out of sink due to refraction
Yes, it may make oil sink if at some temperature the density of water goes lesser than that of oil.
It goes into the water systems and can pollute.
It will sink. And it will slowly oxidize from the dissolved oxygen in the water.