Botany · Horticulture and Landscaping
A basic structural requirement for installing a vertical garden on a wall is that the wall must be:
- 1Completely weak and cracked.
- 2Strong enough to bear additional load and properly waterproofed.✓
- 3Made only of wood.
- 4Painted black to absorb heat.
Correct answer
Strong enough to bear additional load and properly waterproofed.
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