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.
The term tundra comes through Russian ÑÑÐ½Ð´ÑÐ° from the Kildin Sami word tÅ«ndar tÅ«ndÃ¢r, uplands treeless mountain. Tract there are three types of: tundra arctic, tundra alpine, tundra And antarctic. Tundra in, tundra the vegetation is composed of dwarf, shrubs sedges and, grasses, mosses and. lichenshe tundra is covered in marshes, lakes, bogs and streams during the warm months. Generally daytime temperatures during the summer rise to about 12 Â°C (54 Â°F) but can often drop to 3 Â°C (37 Â°F) or even below freezing. Arctic tundras are sometimes the subject of habitat conservation programs.