No it is not. It is an adverb phrase since it lacks a subordinating conjunction.
Adverb clauses must be preceded or started by a subordinating conjunction such as after, if, because or although. For a sentence to qualify as an adverb clause it must include in its body a subject and a verb.
As a general rule you can use the following formula:
An adverb clause equals a subordinate conjunction plus a subject plus a verb, and it should be answering how? when? where? or why?
Answer: This man is carrying his cold daughter. write off of that
B will me the right answer
In chapter 7 Ender begins to feel homesick because he is worried about having friends that are girls will ruin his street cred. He also misses his parents and friends.
No no, I'm not joking that is the result I got from googling it and from reading it myself a year back.