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 is a biome typified by permafrost, permanently frozen ground, that is found in polar regions and isolated patches at the tops of mountains. It is an environment that is harsh, yet surprisingly delicate and easily disturbed.