Identify each italicized subordinate clause as a noun clause, an adjective clause, or an adverb clause. While talking, he waved his arms.

noun clause

adjective clause

adverb clause

Adverb clause.

Explanation:

An adverb clause is a clause or group of words that can be used or functioning as an adverb in a given sentence. It modifies the verb or adverb or adjective in the sentence thereby giving extra information about the where, why, how, when, etc of the verb.

As given in the question, the subordinate clause is "while talking". This subordinate clause needed an independent clause to be able to function as a complete meaningful sentence. This subordinate clause modifies or affects the verb "waved" which makes it an adverb clause.

Thus, the correct answer is the adverb clause.

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ian mortimer in his book "the time traveller's guide to elizabethan england" uses a narrative in his style, which successfully conveys a clear description of the life in england in the 16th century. he writes in second person, which makes it comfortable to reader and easy to understand, he captures the readers attention with views of the landscape, the streets, the people including rich and poor. he also depicts some cultural traits from how people behave, eat or what they wear. his descriptions range from the social, economical, the political power to the examples of the life of common people. it could be tell that this book is about social history rather than a   novel.