Выпишите из текста глаголы и определите их время и залог. russia accounts for one fourth of the global forest cover, with its forests being not only a national treasure, but also global value of paramount importance. the conservation and habitat value of russian forests is very high. temperate and boreal forests comprise a major stabilizing element of natural landscapes. they also protect soil against erosion, and perform such functions as resource conservation and water regulation and water regulation. forests are called ‘the lungs of the planet’: they act as a sing for carbon dioxide and a source of oxygen.