Which items describe the technology of "the hanging garden? "

choose all answers that apply

a. slaves powered the equipment used to move water to the top of the hanging gardens.

b. terraces were built so shade trees, exotic shrubs, and colorful flowers could be high up on the walls.

c. the green plats on the terraces were native to babylon.

d. metal plates reflected light to make up for the shortage of sunlight in the area.

e. fountains, pools and waterfalls were used to cool the gardens.