Still water runs deep.
The ice cubes are still water.
Both. In the sentence "Are you still here?", it is an adverb; in the sentence "The water was quiet and still", it is an adjective.
Since aqueduct is a noun meaning water pipe, you would use it as any other noun. Such as: "The aqueduct is clogged and the water only trickles through." or "The Roman aqueduct is still in use for irrigation".
water is a compound.
Yes, you can still use water if the water heater is off, but it will be cold.
Example sentence - I heated the water in the kettle to make tea.
The water fountain had potable water
i like water skiing.
The guy still had plenitude
I still have to bring in the laundry.
There is still a glimmer of hope.
How can you use unbelievable in a sentence?
Example sentence - My favorite water craft is a schooner.