Which group of words in this sentence is a clause? When World War II broke out, Bearden served in the U. S. Army.

The group of words that is a clause in the sentence is: When World War II broke out.

Explanation:

The clause in any sentence is a group of words that will tell the reader what the sentence is about. In this case, it is when World War II broke out. In the clause, there will be a verb that explains to the reader what the sentence is about.

There are four types of clauses in sentences;

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation:

c. the king has significantly abused the colonists' rights many times over a long period of time.