They're a suspension - of microscopic water droplets.
Copper sulfate solution is typically considered a solution rather than a suspension or colloid. This is because the copper sulfate particles are molecularly dispersed and do not settle out over time, unlike in suspensions.
Salt water is a solution, not a colloid, emulsion, or suspension. A solution is a homogeneous mixture where one substance dissolves in another at the molecular level. In the case of salt water, the salt (solute) is dissolved in the water (solvent) to form a uniform mixture.
A simple solution of salt in water is not a suspension; instead it is a true solution. If the salt water comes from a polluted part of the ocean, it may well be a suspension, but not because of its salt content.
Potassium permanganate and water form a solution, unless here is so much potassium permanganate present compared to the amount of water that the solubility limit is exceeded. In the latter instance, there might be both solution and suspension.
Soil in water is typically a suspension, as the soil particles will settle over time due to gravity. If the soil particles are very fine, it may exhibit some colloidal properties due to the interactions between the particles and the water molecules, but it is still primarily considered a suspension.
collid
seawater solution or suspension
seawater solution or suspension
A mixture may be a solution, a suspension, etc.
suspension
A solution is a homogeneous liquid, a suspension is not homogeneous.
A suspension
suspension
suspension
suspension
suspension
is blood a solution, suspension, or colloid