Because most of the time it is bad to add your own opinion, unless the paper is about you or someone you know
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density is defined as the mass of a substance per unit volume, and is highly variable in crustal rocks. Rock density is a physical characteristic that is governed by the chemical composition (in situ minerals) and pore spaces of a specific rock or rock type.
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Answer:
the "whites only" bathroom issue in his building
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Answer:
Present perfect
Explanation:
The tense of the italicized verb 'have moved' would be present perfect as it denotes a past event/action having its present consequences. <u>Present perfect tense primarily functions to express the actions that took place before now at an unspecified time</u>. It combines the present(through use of 'have') and past(by showing perfection or completion of the action 'moved') and that's how it signals the association between the past and the present. Thus, <em>the use of 'have' followed by past participle signals that present perfect tense is employed in the sentence</em>.
A) According to the author, the 70s were a very interesting time to grow up.
