Is freshly squeezed grapefruit juice a solution and why?

* Solutions are homogeneous mixtures where the components are evenly distributed throughout the mixture. You can't visually distinguish the different parts of a solution.

* Heterogeneous mixtures have components that are not evenly distributed. You can visually distinguish the different parts of a mixture.

In the case of grapefruit juice:

* Pulp and Seeds: Grapefruit juice contains pulp and seeds which are visible and can be separated from the liquid.

* Uneven Distribution: The pulp and seeds don't mix evenly with the liquid.

Therefore, freshly squeezed grapefruit juice is a heterogeneous mixture because of the visible, non-uniform distribution of its components.