Gregor transforming into an insect. hopes this helps.
        
                    
             
        
        
        
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?
 
        
             
        
        
        
I’ll need the answers and passage to answer this.
        
                    
             
        
        
        
Answer:
Explanation:
because there were people who didn’t want the immigrants to “pollute“ the land, and wanted the country to be all-white. people didn’t want other races to be made citizens.