Answer:
" sun rose over the mountains"
"walked through the forest"
These kinds of phrases help us know what is going on in the story. For example, if the story said, "Amak walked for a while to find some food", we don't know where he is, or why he would be looking for food while he was walking. For all we know he could me walking around his house.
Setting is really impotent because it gives the readers visuals. A good writer will help the reader see the area around the character and help them visualize what is happening.
Hope this helps :)