What was the aim of Stalin's scorched-earth policy?

Answer 1

scorched earth means that in war the losing country burns the city to the ground

*EDIT- Scorched earth refers to the burning of land so that it is rendered useless. This was primarily used by Stalin to prevent Napoleon and Hitler from gaining Russian lands. They did this because they were undoubtedly losing against France and Germany so they figured "we might as well make their lives worse if we're gonna lose."

Answer 2

During World War II, Stalin and other Soviet leaders engaged in a "scorched earth" policy as yet another means of defeating their German opponents. Burning crops, destroying bridges and railroads, demolishing (or removing) industrial works and infrastructure such as roads and Plumbing and electrical systems -- all of these and much more helped to deny the Germans any advantages as they occupied Soviet territory.

Answer 3

The purpose was, as ever, not to leave anything that could be used by the enemy that could help them, so no food, equipment or shelter was left.