how and why does salt kill snails?
545752
the snail's body needs to be moist all the time. the water not only protects the snail it also helps lubricate it. the salt absorbs the water from the snail's body.
1011630
I know of two ways.\n1. It is mined from deposites underground.  They used to do this near where I grew up as the chlorine in the salt was used in the processes at the nearby chemical plants.\n\n2.  It is evaporated from ocean water.  Once the water is evaporated mostly what's left is just regular salt.  It just has to be cleaned up a bit.
142072
Salt water works better because it's a better conductor of electricity as opposed to just tap water.  In salt water, you have a solution of both Cl- and Na+ floating about creating a means of transferring electricity (electolytes).  So, instead of a saltbridge to provide the transfer of ions, all the ions needed are right there, which will quickly drain the battery.  Think of it as a short circuit - you have a large current because the path of resistance from the cathode to the anode is nothing.  Plus, there's plenty of ions to provide that means of conduction.
554126
because of the salt content, salt tends to draw water out, hence out in the open the salt would allow the water to be evaporated much more quickly than fresh water
53298
Salt is an herbicide, or in other words, salt is very harmful tp lants and will kill them.
209819
Add water to dissolve the salt.  Drain water and boil off.  Salt is now separated from sand.
838309
b a solution, the salt will dissolve
717147
Balance Your Body Chemistry.\n\nIf you've ever taken chemistry in high school you're familiar with this simple experiment to test the conductivity of salt. Two ends of an electrical wire are attached to a light bulb. The other ends are submerged in a glass of water. Because water alone is not conductive, the bulb does not light up. But when we add a little salt to the water the bulb starts to glow.\n\nIt's the same with our body. When we lack the natural elements in salt we suffer from a chronic energy deficit, or deficit of information. Salt is a core essential nutrient with exceptional abilities and qualities fundamental for keeping us alive.\n\nScience and medicine have tried to define the precise roles of salt in the healthy and diseased human organism. Blood, sweat, and tears all contain salt, and both the skin and the eyes are protected from infectious germs by the anti-bacterial effect of salt. When salt is added to a liquid, particles with opposite charges are formed: a positively charged sodium ion and a negatively charged chloride ion. This is the basis of osmosis which regulates fluid pressure within living cells and protects the body against excessive water loss (as in diarrhoea or on heavy sweating).  Sodium and chloride ions, as well as potassium ions, create a measurable difference in potential across cell membranes. This ensures that the fluid inside living cells remains separate from that outside. Thus, although the human body consists mainly of water, our "inner ocean" does not flow away or evaporate. Sodium ions create a high pressure of liquid in the kidneys and thus regulate their metabolic function. Water is extracted through the renal drainage system. The body thus loses a minimal amount of essential water. Out of 1500 litres of blood which pass daily through the kidneys, only about 1.5 litres of liquid leave the body as urine. \n\nSalt is "fuel" for nerves. Streams of positively and negatively charged ions send impulses to nerve fibres. A muscle cell will only contract if an impulse reaches it. Nerve impulses are partly propelled by co-ordinated changes in charged particles.
515520
The mollusk are killed to retrieve the pearls. Sometimes the pearls form in among the fleshy parts or on the inside surface of the shell where the nacre is made. In either case the mollusk is killed so the pearl can be removed from where it may be attached still to the shell or inside the flesh. In general, the oysters are opened just like you see at the fish market, with an oyster knife and the rest is history.\n\nPearls are formed by any mollusk that can form a shell. The most prized pearl comes from the Pearl Oyster, but other pearls can be found in clams both saltwater and freshwater varieties, abalone, mussels, conch, and so on.
339417
Yes, at least with slugs and leaches..not quite sure about worms.  Their bodies are full of moisture and the salt takes the moisture out which will kill them.  You putsalt down to melt the snow, it does the same thing to them.
237496
They can also be found in most tropical fish stores. The snails are usually unwanted hitch-hikers on aquatic plants.
234198
salt helps maintain water in the body
415923
Yes, salt water is a sodium chloride solution with Na+ and Cl- ions. when two seperate condutors are immersed in the solution without contacting each other and a bulb or any electrical appliance is placed across the conductors the positive and negative ions migrate and conducts electricity.
760986
One large marine snail, Charonia tritonis, feeds on the crown of thorns starfish. When these beautiful snails were overcollected for their shells, the crown of thorns multiplied rapidly and began destroying parts of the Great Barrier Reef. The snails are now protected and the situation is coming back under control.\n\nCharonia tritonis shell: http://www.hausdernatur.de/hnctrit.jpg\n\nCrown of thorns: http://ryanphotographic.com/images/JPEGS/Acanthaster%20planci%20Crown-of-thorns.jpg\n\nCharonia feeding on crown of thorns: http://members.cox.net/arniesdca/shells/charoniaOnCrownofTh.jpg\n.
1117915
because the salt u use in the kitchen does not contain all the particals in the sea water like sodium sulphate magnesium sulphate etc because they are removed in the process  of making the salt and some times the salt it cut down from deep earth and they are also cleaned by removing the toxic particles and iodised which may alter the sea water salt from earth solt altho the main component of salt is Na Cl it has other particals such as iodine and k+ irons Fe ect...
331426
Your getting rid of water and salt. Your body will need water and electrolytes to survive. These cells shrivel up due to a mostly hypotonic solution.
1077836
none salt cause high bloodpressure and stress