What is the defining characteristic of tundra regions?

The defining characteristic of tundra regions is indeed a cold climate with little snow. Tundra ecosystems are typically found in polar regions or high mountain areas, where temperatures remain low for most of the year. The growing season is short, and while some areas may receive snowfall, the amount of precipitation is generally low, leading to a landscape that can appear barren and sparsely vegetated.

Tundra regions also experience unique environmental conditions, such as permafrost, a layer of permanently frozen soil that significantly influences the types of plant and animal life that can thrive there. The cold climate limits the growth of trees and supports mainly low-lying vegetation, such as mosses, grasses, and shrubs. The combination of cold temperatures, low precipitation, and short growing seasons distinctly characterizes tundra ecosystems.