Read the short article excerpt on urban forestry:
"Urban canopies provide measurable economic and environmental dividends. Shaded asphalt streets require significantly less frequent resurfacing, while tree-lined residential neighbourhoods report average summer cooling cost savings of up to 15%. However, municipal arborists caution that inadequate soil volumes frequently truncate the lifespan of newly planted street trees."
According to the author, what is a key limitation hindering street trees?
Answer and explanation
Correct answer: C. Insufficient underground soil volume
- Step 1: Scan the text for keywords relating to limitations, cautions, or hindrances facing urban trees.
- Step 2: Locate the relevant sentence: "However, municipal arborists caution that inadequate soil volumes frequently truncate the lifespan of newly planted street trees."
- Step 3: The term "inadequate soil volumes" corresponds directly to insufficient underground soil volume.
Answer
Insufficient underground soil volume.
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