It conveys the subject of the paragraph.
That way, the subject can be further elaborated and backed up with supporting statements/evidence in the following sentences of the paragraph :)
Answer:
Interlocking guards, also known as barrier guards, automatically shut off or disengage the power source when the guard is open or removed.
Explanation:
Conflict/resolution strategy
Answer:
a wall is the correct answer
It's a movie I don't know about so