Which geographic factor was most significant in

helping the Soviet Union withstand German

attacks in World War II?

(1) The Ural Mountains served as a barrier to

advancing German armies.

(2) Distance and harsh winters disrupted

German supply lines.

(3) Extensive food-producing areas kept the

Soviet armies well fed.

(4) Numerous ports along the Arctic Sea allowed

for the refueling of Soviet transport ships.

Verified Answer :

There were of course several geographic factors that were significant in helping the Soviet Union withstand German attacks in World War II, but the best option is "(2) Distance and harsh winters disrupted German supply lines."

Giovi

I would say (2)

Long distances through the Russian steppes elongated the communication and
supply lines of the German Army requiring almost the same numbers of men to man
them as the ones to actually fight the war (most of them used to fight
partisans attacking supply lines). The harsh winters deteriorated even more
this situation disrupting mechanized and horse transportation and producing the
need of even more specialized goods (anti-freeze, furs, special clothes, etc.).