<P>1. Besides his geodesic domes, Buckminster Fuller is known for his invention of the Dymaxion world map that () into a globe.</P>
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<P>a. it can fold b. is folding c. can be folded d.it is folded</P>
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<P>2. When Columbus ( ) America in 1492, the continents may have been peopled by as many as twenty-five million Indians.</P>
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<P>a. who discoverd b.discovering c. discovered d. to discover</P>
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<P>3. () eight known ways in which genes function</P>
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<P>a. There are at least b. At least c. At least the d. For at least are</P>
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<P>4. Acoustic ( ) one of the oldest of thephysical sciences.</P>
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<P>a. it is b. is c. as d. being</P>
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<P>5. Volcanoes () as active, dormant , or extinct. </P>
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<P>a. described b are described c. being described d. which are described</P>
