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Q7: An object has a positive electric charge
Q8: A 2-kg book is held 1 m
Q15: The Neanderthals<br>A) were less than a meter
Q16: Our galaxy is shaped roughly like a<br>A)
Q31: The stars in a constellation<br>A) are about
Q31: An element that can form an ionic
Q37: Galaxies<br>A) have a variety of shapes.<br>B) are
Q38: Oxidation-reduction reactions are not involved in<br>A) electrolysis.<br>B)
Q39: The watt is a unit of<br>A) energy.<br>B)
Q43: Which of these statements is true for