At the founding, America adopted the Western concepts of civil marriage and family, in which the mother played the primary role (shared with the father) in nurturing children, with the formation of character and moral values as essential objectives.
Tundra climate, major climate type of the KÃ¶ppen classification characterized by sub-freezing mean annual temperatures, large annual temperature ranges (but not as large as in the adjacent continental subarctic climate), and moderately low precipitation.
Tundra means marshy plain. The geographical distribution of the tundra biome is largely poleward of 60Â° North latitude. The tundra biome is characterized by an absence of trees, the presence of dwarf plants, and a ground surface that is wet, spongy, and hummocky.