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Q1: Which of the following best describes the
Q9: Physical weathering is most effective at<br>A)high latitudes.<br>B)low
Q13: During which 100-year period did CO<sub>2</sub> atmospheric
Q16: Which of the following has dramatically changed
Q33: A telescope is to the astronomer what
Q55: In a valley glacier,where is the ice
Q59: Guyots differ from regular seamounts in that<br>A)they
Q61: What is the chemical formula for ozone?<br>A)O<br>B)O<sub>2</sub><br>C)O<sub>3</sub><br>D)O<sub>4</sub>
Q69: "Sand seas" that cover up to 500
Q74: Nuclear energy is produced by<br>A)the fusion of