Bangladesh is a low-lying country. (Change it into Interrogative

No other city in the earthquake zone is as risky as Dhaka.

Degrees of comparison are used to compare the qualities of two or more things or persons. There are three types of degrees: Positive, Comparative, and Superlative. The original sentence, "Dhaka is the most risky city in the earthquake zone," is in the Superlative degree, indicating the highest level of risk.

To convert a Superlative degree sentence (especially one with 'the most' or 'the -est') into the Positive degree, the common structure used is "No other + singular noun + verb + as + positive form of adjective + as + subject." This construction allows us to express the same idea of uniqueness or extreme quality without explicitly stating a comparison that implies superiority or inferiority.

In this case, "the most risky" becomes "as risky as" when changing to the Positive degree, and the sentence starts with "No other city in the earthquake zone" to establish that no other city matches Dhaka's level of risk.