A solution is a type of mixture in which the particles:settle out to form a sedimentscatter lightare extremely smallallow light to pass straight through

A solution is a type of mixture characterized by the following:

1. Particles Settle Out to Form Sediment: In a true solution, the solute particles do not settle out over time, indicating that they are evenly distributed throughout the solvent. This settling of particles is a feature of suspensions rather than solutions.

2. Scatter Light: Solutions do not scatter light. Instead, they are typically transparent. The scattering of light occurs in colloids and suspensions, where larger particles can reflect or refract light.

3. Extremely Small Particles: This is a key characteristic of solutions. The solute molecules or ions in a solution are at the molecular or ionic level, which is generally less than 1 nanometer in diameter.

4. Allow Light to Pass Straight Through: Solutions are clear and allow light to pass through without obstruction, which means they do not show any turbidity.

In summary, a solution is a homogeneous mixture where the solute is dissolved at a molecular level, does not settle, does not scatter light, and allows light to pass through clearly.