what are ice caps , tundra , subarctic region
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Answer:
In glaciology, an ice cap is a mass of ice that covers less than 50,000 km² of land area. Larger ice masses covering more than 50,000 km² are termed ice sheets.
In physical geography, tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons. The term tundra comes through Russian тундра from the Kildin Sámi word тӯндар meaning "uplands", "treeless mountain tract".
The subarctic zone is a region in the Northern Hemisphere immediately south of the true Arctic and covering much of Alaska, Canada, Iceland, the north of Scandinavia, Siberia, the Shetland Islands, and the Cairngorms. Generally, subarctic regions fall between 50°N and 70°N latitude, depending on local climates.
Ice caps= Ice caps are defined as a climate with no months above 0 °C (32 °F).
Tundra= The large flat Arctic regions of northern Europe, Asia and North America where no trees grow and where the soil below the surface of the ground is always frozen.
Subarctic= Subarctic region relates to the region immediately south of the Arctic Circle.