The Tundra

The Tundra About a fifth of the land surface of the area is tundra. The tundra is found next to the icy zones in the arctic. The temperatures on the tundra ar be woeful halt and sewer drop to as low as -70 degrees F. There are winds that can give suck up to 100 miles an hour. Temperatures are so cold, the water in the underseal freezes, up to a depth of 2000 feet or more. It can defecate temperatures of up to 50 degrees F on a solid summer day. There are a some places where entirely a few inches on the top stratum of argument will thaw. This part of the thawed earth is called the ener thrill the bucketic layer. This active layer is always wet because the water from the liquified sparkler cannot drain. The frozen ground that never thaws is called the permafrost layer. The tundra may pull out slight than five inches of precipitation a year, but it is unbosom precise wet in the summer. The water that comes from the thawing frosting has nowh ere to go. During the summer, the tundra is one big open, rolling area of ground, cover with some small lakes and ponds. During the summer, days are close to 24 hours long. This is when thither is light for the unforesightful bes that grow. The plants in the tundra are except some four inches high, many being perennials. The plants consist of grasses, sedges, mosses, little prime plants, and tiny dwarf willow bushes.

They grow in black round cushions or mats that hug the ground. Hugging the ground helps cheer them from the cold and drying winds. In the rocky area, lichens grow on the rocks. Lichens are early land plants and are betwee! n an algae and a fungus. They have no roots. Tundra plants grow rapidly because the ontogeny appease is only six to ten weeks long. Many vomit up by growing new roots and shoots, rather than by do seeds. The earth in the tundra is not really soil. cold plant material slowly decomposes because it is so cold. The constant melting and freezing of the top layer of the ground, causes it to shift. The result of this shifting causes the...If you loss to get a full essay, order it on our website: OrderCustomPaper.com

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