Which description applies to the components of a heterogeneous mixture?

In a heterogeneous mixture, the components are not uniformly distributed throughout the mixture, which means they retain their individual properties. This lack of uniformity allows for variations in composition, making some components easily identifiable and visible. For example, when you look at a salad, you can easily see the different ingredients like lettuce, tomatoes, and cucumbers, each maintaining its distinct characteristics.

The visible nature of the components is a hallmark of heterogeneous mixtures, as opposed to homogeneous mixtures where the individual substances are blended so thoroughly that they appear as a single phase. Therefore, the description that they are of varied composition and visible accurately reflects the defining traits of heterogeneous mixtures.