Plus, the rivers’ beauty attracts tourists from all over Europe, bringing money to Valjevo for schools, parks, and other needs.
Engineers keep rivers like the Gradac and Kolubara clean by building water treatment plants to stop pollution and dams to prevent floods that can carry trash into the water. They also use tools to test the water and make sure it’s safe for fish and plants. By planting trees along the banks, they keep the river clear and protect endangered animals like the falcon, and hunting is also banned to keep these animals safe!
