Final answer:
The high number of USSR people who died during WWII can be attributed to multiple factors including invasion by Axis powers, limited resources, and harsh winter conditions.
Step-by-step explanation:
The high number of USSR people who died during WWII can be attributed to various factors. Firstly, the USSR suffered heavy casualties because of the invasion by Axis powers, particularly Germany. The Germans launched a massive invasion of the USSR in 1941, leading to significant loss of life.
Secondly, limited resources and infrastructure in the USSR also contributed to the high number of deaths. The Soviet Union was ill-prepared for war, with shortages of weapons and supplies, which made it difficult for them to effectively defend against the Axis powers.
Lastly, harsh winter conditions played a significant role in the high number of USSR casualties. The brutal Russian winter posed challenges to both the Axis and Soviet forces, but it particularly affected the invaders, leading to their exhaustion and eventual retreat.