The correct statements are 1) Natural geographic landforms offered protection from invaders and 2) A moat filled with water from the Euphrates River surrounded the city.
During Nebuchadnezzar's reign, Babylon natural geographic landforms offered protection from invaders and a moat filled with water from the Euphrates River surrounded the city.
Nebuchadnezzar was the king of Babylon from 605 to 562 BCE. He conquered Syria and Jadah. He though his troops could also conquer the Egyptian territories, but that was not the case. Historians refer to Babylon as a pretty city full of gardens with beautiful flowers and fountains. The Hanging Gardens of Babylon and the Babel Tower were two of the most impressive things of that time.