What practice by retreating Soviet troops prevented resource gains for German troops? The Soviets froze the oil inside the military tanks. The Soviets initiated a blitzkrieg against the Germans The Soviets enacted a scorched earth policy. The Soviets cut off the supply lines from the Axis powers.

The correct answer is: The Soviets enacted a scorched earth policy.<br /><br />The scorched earth policy is a military strategy where retreating forces destroy anything that could be useful to the enemy, such as infrastructure, crops, and resources. By implementing this policy, the Soviet troops prevented the German troops from gaining valuable resources and supplies, thereby hindering their advance.