Site menu
Все о медицине
Login form
What tundra and where she is
     Tundra is a cold natural zone, look like the desert that is in the North hemisphere and surrounds a north pole. Severe landscape greater part of year is in the frozen state, and water is inaccessible. During an arctic winter a temperature goes down to are 50 degrees on Celcius. In summer on a few weeks earth thaws, and plants and animals(among them there are geese, marine birds, polar bears, deer of cariboo and shrew) begin to fight for a survival. Ecosystem of tundra especially чуствительна to intervention from a man and to contaminations. The overflows of oil inflict a great damage to the plants and animals dwellings in this environment.