What do you call a broad geographic area with similar features that supports life?

The term that best describes a broad geographic area with similar features that supports life is "biome." A biome is characterized by its climate, vegetation, and wildlife which collectively create a distinct ecological community. Examples of biomes include deserts, forests, grasslands, and tundras, each defined by specific conditions such as temperature, rainfall, and vegetation types.

In contrast, an ecosystem refers to a specific community of living organisms and their physical environment interacting as a system, but it tends to be smaller and more localized compared to a biome. A region generally signifies a larger area that may encompass multiple biomes and ecosystems but does not specifically indicate the biological features present. A community represents the assemblage of various species living together in a specific area, but this, too, is at a smaller scale than a biome. Thus, the most accurate term for a broad geographic area with similar features supporting life is "biome."