They use maps and satellites.
The answer is destructive force.
Constructive force is the force that makes or forms the mountains and other features. Superposition forces are topics to be discussed in theories in <span>physics and systems and may not be applicable here. Unnatural is just an unusual choice. </span>
Answer: 4.5 light years
Example;Lets say that in the dinosaur days there was a star that exploded.
after 8 light years we would see it now. (now as in 2020) So thats why 4.5
light years is more then 150 million kilometers.
