Why does the sun shine 24 hours a day in the tundra?

The sun shines 24 hours a day in the tundra during the summer months due to the tilt of the Earth's axis. In this region, which lies above the Arctic Circle, the sun does not set for an extended period, creating a phenomenon known as the "midnight sun." This occurs because the Earth's tilt allows the sun to remain visible above the horizon, providing continuous daylight. Conversely, in winter, the tundra experiences polar night, where the sun does not rise for several weeks.