Final answer:
When writing, a dash can be used to add meaning and emphasis, indicate contrast or pause, mark a change of direction, or set off nonessential information.
Step-by-step explanation:
When writing, you can most effectively use a dash to add meaning and emphasis, indicate a contrast or a pause, mark a change of direction, or set off nonessential information in a sentence. Dashes place more emphasis on the enclosed content than either parentheses or commas.
Examples:
- The U.S.S. Constitution became known as "Old Ironsides" during the War of 1812-during which the cannonballs fired from the British H.M.S. Guerriere merely bounced off the sides of the Constitution.
- To some of you, my proposals may seem radical even revolutionary.
- The roof of that car was covered in Astroturf-a strange sight!
- Quentin's father gave him a golden pocket watch, which was a priceless family heirloom.