The Metro Lines run: 1  Red: serves the northern part of the city. Main stations are: Union Station, Metro Center, Chinatown and Dupont Circle. 2  Blue: runs west-east through the city and then south. Main stations are: Capitol South, Smithsonian, McPhearson Square (White House), Arlington National Cemetery, National Airport.
Climate In the arctic tundra there are two seasons: winter and summer. In the summer, the sun is present almost 24 hours a day. This sun however, only warms the tundra up to a range of about 3Â°C to 12Â°C.In the winter the opposite light conditions are present.There are several weeks where the sun never rises.limate In the arctic tundra there are two seasons: winter and summer. In the summer, the sun is present almost 24 hours a day. This sun however, only warms the tundra up to a range of about 3Â°C to 12Â°C. In the winter the opposite light conditions are present. There are several weeks where the sun never rises.
What are the abiotic and biotic factors of the desert biome?Introduction to abiotic factors of the tundra. It encompasses both arctic and alpine tundra. mammals (arctic foxes, wolves, and polar bears. . . . Tundra means land without trees and its come from the Finnish word tunturia, meaning treeless plain.hat are the abiotic and biotic factors of the desert biome?Introduction to abiotic factors of the tundra. It encompasses both arctic and alpine tundra. mammals (arctic foxes, wolves, and polar bears. . . . Tundra means land without trees and its come from the Finnish word tunturia, meaning treeless plain.