Classify each of the following as a homogeneous or heterogeneous mixture:
Soda water, wood, air, soil, vinegar, filtered tea.
A homogeneous mixture has uniform composition and appearance.
A heterogeneous mixture consists of visibly different phases or substances.
From the list of given substances:
Homogeneous mixtures are soda water, air, vinegar, and filtered tea.
Heterogeneous mixtures are wood and soil.