Areas located equally far north in Russia and North America are mainly tundra, a treeless wasteland, because of the cold climate.
(Areas; located; L:equally far north in Russia and North America) (Areas located equally far north in Russia and North America; are mainly; tundra; because of the cold climate)
Areas Areas located equally far north in Russia and North America
located are mainly
L:equally far north in Russia and North America
tundra because of the cold climate