What is uniform composition?

Hint: A mixture of uniform composition is one in which all of the components' molecules are evenly distributed throughout the mixture. Because the mixture has a uniform texture, it is impossible to distinguish them individually.

Complete Step by step answer:
A mixture is a material made up of two or more different chemical substances that are not chemically combined in chemistry. A mixture is a physical mixture of two or more substances that retain their identities and are mixed in the form of solutions, suspensions, or colloids.
A mixture of uniform composition is one in which all of the components' molecules are evenly distributed throughout the mixture. Because the mixture has a uniform texture, it is impossible to distinguish them individually.
A homogeneous mixture is one in which the chemical composition is consistent throughout. Because the dissolved salt is evenly distributed throughout the entire saltwater sample, the saltwater described above is homogeneous. Because they are both uniforms, it is common to confuse a homogeneous mixture with a pure substance.
The difference is that the substance's composition is always the same. The amount of salt in the saltwater varies depending on the sample. Because the dissolved material is present in the same amount throughout the solution, all solutions are considered homogeneous.

Note:
A heterogeneous mixture is one in which the composition varies from one part to the next. Vegetable soup is a diverse mix of ingredients. Each spoonful of soup will contain varying amounts of the soup's various vegetables and other ingredients.