The theory of plate tectonics states that the Earth's surface, the upper mantle and crust, was once made up of enormous rock plates that broke into smaller pieces approximately 300 million years ago. These smaller, broken plates form a more fluid rock surface in the mantle. Over time, the plates move and morph into natural land boundaries. This explains natural land phenomena, such as earthquakes and tsunamis.So A
Answer:
to set off introductory phrases and clauses
Explanation:
I would say 'd'. It's always better to give a fresh look to your paper.
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The thesis is usually in the introduction
Answer:
b. Because every other office is filled, we should convert Dr. Blake’s office into a lounge.
Explanation:
Looking at the sentence of the whole passage, the flow of the sentences is smooth until the parallel structuring of the sentences in the end. Instead of mentioning "<em><u>each and every one of the other offices</u></em>", the sentence can be made more fluent and easy flowing by just saying "<em><u>every other office</u></em>". This will also stop the monotonous flow of words. Also, changing the way of narration in the word "recommend" to a direct form of addressing the idea will make the statement more forward and direct.
Thus, the best revision for the sentence will be-
<u>Because every other office is filled, we should convert Dr. Blake’s office into a lounge.</u>