Im thinking it is a prefix. i may be wrong though
I used an external USB in my computer yesterday.
Hope this helps!
The second one is correct. The choices between two roads symbolizes choices that are made in life.
Sequence is extremely important when it comes to A. chronological order.
Chronological order means that you are writing events in the exact order in which they occurred. Obviously, this is where sequence comes in, because sequence of events refers to the way, or order in which they actually happened. Thus, sequence is important for chronology, and doesn't have much to do with cause and effect, compare and contrast, or examples and explanations.
