How did the people building the Trans-Siberian railroad have to adapt to the physical environment? Why was it important to build the trans-Siberian railroad?

Trans-Siberian Railroad, Russian Transsibirskaya Zheleznodorozhnaya Magistral, (“Trans-Siberian Main Railroad”), the longest single rail system in Russia, stretching from Moscow 5,778 miles (9,198 km) east to Vladivostok or (beyond Vladivostok) 5,867 miles (9,441 km) to the port station of Nakhodka. It had great importance in the economic, military, and imperial history of the Russian Empire and the Soviet Union.

Explanation:

Trans-Siberian Railroad, Russian Transsibirskaya Zheleznodorozhnaya Magistral, (“Trans-Siberian Main Railroad”), the longest single rail system in Russia, stretching from Moscow 5,778 miles (9,198 km) east to Vladivostok or (beyond Vladivostok) 5,867 miles (9,441 km) to the port station of Nakhodka. It had great importance in the economic, military, and imperial history of the Russian Empire and the Soviet Unon.

Explanation:

this isn't a question and if you're going to list things be kind and use commas.