Which rating is considered not acceptably clean for streets?

• A. 1.0
• B. 1.35
• C. 1.2
• D. 1.5

Answer: (C)

The rating that is considered not acceptably clean for streets is 1.2. This rating typically reflects a level of cleanliness that fails to meet established standards for public spaces. A score of 1.2 indicates that there are visible amounts of litter, debris, or other pollutants that may compromise the aesthetics and safety of the area.

In contrast, higher ratings such as 1.35 and 1.5 generally signify a much cleaner environment, with fewer visible pollutants and a more appealing appearance. A score of 1.0 represents maximum cleanliness, meaning the streets are well-maintained and free of litter.

Therefore, a rating of 1.2 demonstrates that the streets require improvement to attain a cleaner and more acceptable status for public use.