This is an independent sentence with a S V O pattern in which the object is a prepositional phrase.
The answers easy in college terms the proportional length of a photon is easy you have to solve it with hezinbergs uncertainty principle it is used in quantum physics
You would have to watch tv because it would entertain u but life would be difficult with out devices
The correct option is: "Sydney draws visitors from all around the world to see its iconic architectural masterpiece—the Sydney Opera House."
<u><em>The dash </em></u>can be used in English to add explanatory phrases or comments, similar to parentheses. In formal writing, parentheses should be used instead of hyphens, since the latter sign is considered more informal. Dashes can be used to emphasize a sentence.