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8. ___________most brilliant Greek inventor was Archimedes, who lived about 2,250 years ago. a. The b. One of the c. As the d. Of the

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12. Ralph Waldo Emerson’s belief ____________ the individual freedom of all people greatly influenced later American thinkers. a. as of b. on c. in d. as in

4. Ansel Adams was a landscape photographer _______________ photographs of the western United States show nature on a grand scale. a. whose b. of his c. of whom d. his

14. _____________ phobias do not involve loss of contact with reality, they may severely limit a person’s life. a. Although b. Despite c. That d. As

1. Snakes have an organ in a pit on their heads _____________ infrared rays. a. detects b. a detection of c. it detects d. that detects

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7. The higher the content of carbon dioxide in the air, ________________ a. more heat it retains b. than it retains more heat c. it retains more heat d. the more heat it retains

15. During the 1930s, unsuitable farming techniques and excessive grazing of grassland in the Great plains produces ________________ a. which it became known as the Dust Bowl b. what became known as the Dust Bowl c. it became known as

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9. ____________ flying, a bat emits a rapid series of ultrasonic signals, which bounce off any object in its path. a. When it b. When it is c. It is d. When is

17 identify errors