Final answer:
The correct answer is "a) homogeneous; solutions" where homogeneous mixtures are also known as solutions, characterized by a uniform composition throughout.
Step-by-step explanation:
The question is asking about the classification of mixtures based on their uniformity and particle size. The correct answer to the question "Mixtures can also be ______ A.k.a. ______." is "a) homogeneous; solutions". Homogeneous mixtures, also known as solutions, are combinations of two or more substances that have a uniform composition throughout. For example, saltwater in an aquarium is a solution because the salt is dissolved uniformly throughout the water, making it clear and consistent.
On the other hand, heterogeneous mixtures like suspensions are not uniform throughout. An example of a suspension is muddy water, where the particles of mud are suspended in the water and can eventually settle out. When discussing mixtures in chemistry, it's essential to distinguish between these different types based on properties such as particle size and uniformity.