don't cut your self and don't make a shark follow you and don't go so far out in sea.
The eye can stop seeing if you go blind. Fish can't close their eyes because they don't have eye lids (exception to some sharks) to close them with.
No. Tidal gauges only measure water levels.
Yes, they should stop killing sharks!
Close the door.
Sharks do sleep however they must sleep and swim at the same time because if they stop swimming they will stop breathing.
Sharks can never stop moving, because of the way their gills are. If they stop swimming, water will get in, and they will drown and die.
Not all sharks have shelter but, Great White Sharks can't stop swiming or they die.
If sharks stop swimming,then they sink, but the nurse shark is an exception
when it hits shore
Tell them that the Sharks have diseases or just explain how it is minimising the population of mayo sharks.
Stop killing them for their skin.
Have mouse traps on the ground but make sure they are not that close to your bed because you might step on one.