Here's why:
* Midnight sun: The phenomenon of the midnight sun occurs when the sun stays above the horizon for 24 hours or more during the summer solstice. This happens in regions located north of the Arctic Circle and south of the Antarctic Circle.
* Tundra: Tundra is a biome characterized by extremely cold temperatures, low precipitation, and permafrost. While some areas of the tundra are within the Arctic Circle and experience the midnight sun, the tundra itself is not synonymous with the "land of the midnight sun."
So, while some parts of the tundra might experience the midnight sun, it's not a defining characteristic of the biome itself.