Answer:
1) Bar lines are vertical lines that divide measures.
2) Bar lines are horizontal lines that end measures.
Step-by-step explanation:
Sheet Music: A bar line are the vertical lines that divide the staff into measures.
Implementation in Music: Bar lines are used to divide music into measures and usually occur at the end of each musical phrase.
Reading Bar Lines: In music notation, a bar line is a horizontal line that indicates the end of a measure. Bar lines are placed at intervals of measures, and they usually correspond to musical phrases or sections.
Hope this helps.