Russia's greatest weakness in WWI was a lack of A.
population
B.
autocracy
C.
food
D.
industrialization

D

Explanation:

There was not enough industry to supply war effort. Without it, Russia had to rely on purchases from France and England, especially in chemistry and some other stuff (mind you, even helmets were purchased in France!). This creates the second problem of “delievering goods to frontline” and ports.

Russia was not self-sufficient.

Russia received shipments in Arkhangelsk and Black Sea ports. Black Sea route was the best, but when Turkey entered war, it strangled this delivery route by blocking straits.

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- Mitsu JK

D.industrialization

Explanation:

Russia's first military forays were disastrous. Its soldiers were poorly equipped, many lacking rifles, and its generals and officers were barely competent. 4. In September 1915, the tsar took command of the army despite his lack of combat experience.

the term is einsatzgruppen