Heterogeneous. You know this because you can see the individual pieces of the salad. An example of a food that's homogeneous would be something like bread where you can't see all the individual components.
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Caesar salad is a heterogeneous mixture because it is composed of different visible ingredients such as lettuce, croutons, Parmesan cheese, and dressing.
Salad dressing is a heterogeneous mixture.
Salad is a heterogeneous mixture of a lot of things, many of which are themselves heterogeneous mixtures..
Its a heterogeneous mix because the particles of the salad are not blended completely together. A homogeneous mix is when the particles are mixed so finely that you cannot see the individual particles.
The two major classes of mixtures are homogeneous mixtures, where the components are uniformly distributed and not distinguishable (like saltwater), and heterogeneous mixtures, where the components are not uniformly distributed and can be visually distinguished (like a salad).
Homogeneous mixture: A mixture with uniform composition, where the components are evenly distributed throughout, such as saltwater. Heterogeneous mixture: A mixture with non-uniform composition, where the components are visibly different and can be separated easily, like a salad with lettuce, tomatoes, and cucumbers.