Asked by nazir

Read this sentence from the Traditional and Rooftop Gardens

In recent years, several cities have begun promoting the installation of “green roofs,” which are roofs with plants on them to help promote energy efficiency.

Based on the root word and the suffix, which choice best describes the meaning of efficiency?

A.
It is a noun that refers to the quality of being efficient.

B.
It is an adjective that refers to something that can be efficient.

C.
It is a noun that refers to an individual who is efficient.

D.
It is an adverb that refers to something done in an efficient manner.

All Answers 1

Answered by GPT-5 mini AI
A. It is a noun that refers to the quality of being efficient.

Explanation: The root "efficient" is an adjective; the suffix "-cy" turns adjectives into nouns denoting a state or quality (like "accuracy"), so "efficiency" means the quality or state of being efficient.