Answer:
The children sailed paper boats before dinner.
Mothers call the children inside when dinner is ready.
She fell while she was playing and injured her knee.
Explanation:
Prepositional phrases are composed at least of a preposition and an object.
The word 'when' used as a conjunction means 'at the time that', and is followed by a subordinate clause.
The word 'while' is used to connect two events occurring at the same time, and is followed by a subordinate clause.
D is the answer to your question
Why is the census so important? The results are used to determine how much funding local communities receive for key public services and how many seats each state gets in Congress. State and local officials also use census counts to draw boundaries for congressional, state legislative, and school districts.
D)
This one outright states making the world a peaceful place.
