Yes, soils contain salts.
Dissolved salts are transported by the rivers.
These salts are dissolved from the Earth rocks.
Weathering of soil and rock to produce water soluble salts, which are carried to the sea by rivers that run into it.
Dissolved salts have an influence on the physical, chemical and biological properties of the solution.
Irrigation water has dissolved salts and minerals. Those salts and minerals are left behind as the water evaporates. Soil that is high in salt is not favorable for growing most crops.
That depends on your soil and your definition of "good". Dry soil is probably a very poor conductor. Wet soil can be a pretty good conductor if you have large contact surface areas and dissolved salts in the water.
Common dissolved salts in water include sodium chloride (table salt), calcium carbonate, magnesium sulfate, and potassium chloride. These salts can come from natural sources, industrial processes, or human activities, and when present in high concentrations, they can impact water quality and taste.
The sea is salty because over billions of years, rain and rivers have washed mineral salts from rocks and soil into the ocean. These dissolved salts, such as sodium and chloride, accumulate in the ocean, making it salty.
Ionic salts are dissociated in ions.
Salts may be soluble or insoluble in water.
When they have a polar molecule.
The result of a build-up of salts in the top layers of soil is known as soil salinity. This can negatively impact plant growth by causing water stress, nutrient imbalances, and reduced root growth. It can lead to decreased crop yields and ultimately affect agricultural productivity in the affected areas.