B. Because the gardens were fed by a complex irrigation system.
C. Because the gardens were planted on the top of a palace with a waterfall that cascaded down the side of the palace.
D. For the type of palm trees that were used in the landscaping of the gardens.
The correct answer is B. Because the gardens were fed by a complex irrigation system.
The Hanging Gardens of Babylon were one of the most famous and magnificent structures of the ancient world. They were built in the 6th century BC by King Nebuchadnezzar II for his wife, Queen Amytis. The gardens were a series of terraces that were planted with a variety of flowers, trees, and shrubs. They were watered by a complex irrigation system that used a series of pumps to lift water from the Euphrates River. The gardens were a marvel of engineering and were considered to be one of the wonders of the ancient world.