Plants in the arctic tundra must be able to live a) in wide range of temperatures b) without sunlight for the most of winterc) without waterd) at high elevations

The correct answer is B. Plants in the arctic tundra must be able to live without sunlights for the most of winter.

Explanation:

Tundra is one of the main ecosystems or biomes on earth. It consists of treeless areas north and south of the polar forest boundary. Most of this ecosystem is located in Russia, Canada and Alaska.

The tundra usually has permafrost, and only the upper layers of soil thaw in the summer. Tele underground prevents drainage, so that the soil becomes water-saturated during the growing season even if the rainfall is small. Wetlands are very common on the tundra.

The climate of the tundra is very cold, with severe and long winters where temperatures drop even at −40 −50 degrees, while summers are cool with temperatures that do not exceed 10 degrees (in Barrow, Alaska the average summer is 5 degrees with peaks of 15 degrees). In the tundra it rains little, about 100 mm per year and the rains are concentrated in summer.

The tundra is the typical vegetation of the arctic polar areas, mainly composed of mosses, lichens and few shrubs. In reality, at least on higher and drier soils, evergreen dwarf shrubs also grow. The only tree species (but not more than 1.5–2 m high) are deciduous willows and birches.

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