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These are white with red vertical stripes and indicate unobstructed water on all sides. They mark mid-channels or fairways and may be passed on either side.
These are white with red vertical stripes and indicate unobstructed water on all sides. They mark mid-channels or fairways and may be passed on either side.
Red and white, stripped vertically.
It indicates safe unobstructed water on all sides, sometimes called a mid-channel marker.
It indicates safe unobstructed water on all sides, sometimes called a mid-channel marker.
These are white with red vertical stripes and indicate unobstructed water on all sides. They mark mid-channels or fairways and may be passed on either side.
When universal indicator is put in water soluion of alkalis (base) it indicates significant blue colour.
If tap water turns a deep red color with a few drops of potassium thiocyanate (KSCN), it indicates the presence of iron(III) cations (Fe3+).
A pink or purple ring around the pool could be caused by minerals. You should try shocking your pool water.
These are white with red vertical stripes and indicate unobstructed water on all sides. They mark mid-channels or fairways and may be passed on either side.
Condensation indicates formation of clouds. It is the 2nd step of water cycle.
An island has water on all four sides.