A line segment on a graph would be any line that isn't continuous. It would have dots on the ends instead of arrows. Is that what you're asking?
Time distance decay
Hope it helps :)
Answer:
1 AU is the astronomical units closest to the distance of the earth to the sun
The statement that your dog may live in "un immeuble residentiel" if you lived in a French city is false.
<span>the answer to this question is refraction</span>