Gabions are best described as:

Gabions are best described as:

• A. Steel mesh cages filled with small rocks
• B. Plastic bags filled with soil
• C. Wooden crates filled with sand
• D. Concrete blocks arranged in a wall

Answer: (A)

Gabions are steel mesh cages filled with rocks to create a flexible, permeable structure that stabilizes slopes and dissipates water energy. The rock fill provides mass to resist movement, while the mesh and the gaps between stones allow water to pass through, reducing hydrostatic pressure and accommodating settlement without cracking. This makes gabions ideal for riverbanks, roadside slopes, and channels where drainage and adaptability matter. They differ from plastic bags filled with soil, wooden crates filled with sand, or rigid concrete blocks, which lack the combination of permeability, flexibility, and ease of repair that gabions offer.

Gabions are steel mesh cages filled with rocks to create a flexible, permeable structure that stabilizes slopes and dissipates water energy. The rock fill provides mass to resist movement, while the mesh and the gaps between stones allow water to pass through, reducing hydrostatic pressure and accommodating settlement without cracking. This makes gabions ideal for riverbanks, roadside slopes, and channels where drainage and adaptability matter. They differ from plastic bags filled with soil, wooden crates filled with sand, or rigid concrete blocks, which lack the combination of permeability, flexibility, and ease of repair that gabions offer.