_____ can be complicated and even expensive to design and plant, but once they get started, they almost take care of themselves.
A) Food forests
B) Trellis gardens
C) Roof gardens
D) Backyard gardens
Question 2
Which of the following are important things to be considered when selecting a container for shrubs and trees?
A) Appearance
B) Cost
C) Insulation value
D) All of the above