Fish farming in USSR 1970s

The video discusses the vast forests in the Soviet Union and their vulnerability without proper management. It highlights the extensive black soil regions in Russia, emphasizing the importance of preserving the fertile layer during excavation. The process of land rehabilitation is explained, where the fertile soil is restored after resource extraction, allowing agriculture to thrive again.

What percentage of the world's forests is located in the Soviet Union?

• More than a quarter

• Less than a quarter

• More than half

• Exactly a quarter

Why is it important to preserve the fertile topsoil in Russia's black soil regions?

• To prevent soil erosion

• To ensure future agricultural productivity

• To increase the land's mineral content

• To reduce water pollution

What is the first step taken before excavating the black soil regions?

• Planting new trees

• Removing the fertile topsoil

• Testing soil quality

• Building protective barriers

How is the land healed after resource extraction?

• By leaving it to recover naturally

• By replacing the preserved fertile layer

• By using chemical fertilizers

• By planting new trees

What is the ultimate goal of the land restoration process?

• To create new habitats for wildlife

• To increase biodiversity

• To improve water retention

• To allow new crops to grow