Complex sentence: A belt of forest steppes cross Eurasia from eastern Europe to Eastern Siberia, forming a transition between temperate broadleaf and mixed forests and temperate grasslands, while other forest steppe ecoregions are found in the mountains of the Iranian Plateau.
Split into simpler sentences: A belt of forest steppes cross Eurasia from eastern Europe to Eastern Siberia, forming a transition between temperate broadleaf and mixed forests and temperate grasslands. Other forest steppe ecoregions are found in the mountains of the Iranian Plateau.