In the green corridors passage, which constraint is cited as a challenge in dense neighborhoods?

• A. Lack of sunlight.
• B. Maintenance costs and space constraints.
• C. Insufficient funding for planting.
• D. Excessive rainfall.

Answer: (B)

The key idea is that in dense urban areas, practical, real-world limits—especially the need for ongoing upkeep and the scarcity of usable space—drive the feasibility of green corridors. In crowded neighborhoods, there isn’t much room to allocate for planting along streets, medians, or along building edges, and every available strip has competing demands from pedestrians, utilities, and infrastructure. That makes creating and sustaining a connected green corridor costly and logistically tough. Maintenance costs rise because these spaces require regular watering, pruning, pest control, soil management, safety measures, and sometimes repairs to adjacent structures or utilities. When space is so limited, even small or irregular plots must juggle multiple uses, which complicates planting plans and increases the resources needed to keep the corridor healthy and functional.

Lack of sunlight, while possible in some settings, isn’t described as the main hurdle in this context. Insufficient funding for planting touches on a related issue but is more about budget availability than the daily, recurring costs and the physical space required. Excessive rainfall isn’t emphasized as the principal challenge either.