ch12 - MULTIPLE CHOICE. Choose the one alternative that...

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Unformatted text preview: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A cat strolls across your backyard. An hour later, a dog with its nose to the ground follows the trail of the cat. Explain what is going on from a molecular point of view. 1) _______ A) T h e d o g i s f o l l o wi ng the are as of inc rea sed de nsi ty of the Ear th. T h e d o g is smelling molecule s from the cat. The cat is leading the dog into a trap. D) The dog is smelling atoms from the cat. 2) If all the molecules of a body remained part of that body, would the body have any odor? 2) _______ A) Y e s , b e c a u s e it wo uld stil l rel eas e ph oto ns. Y e s, b ut only if that body is sweating. No, because there would be no molecules traveling to our nose. D) No, because it would no longer be what it was. 3) Which are older, the atoms in the body of an elderly person or those in the body of a baby? 3) _______ A) a n e l d e r l y p e r s o n be cau se the y ha ve bee n aro un d mu ch lon ger It d e pends upon their diet. They are of the same age, which is appreciably older than the solar system. D) a baby because this is surely a trick question 4) Where did the atoms that make up a newborn baby originate? 4) _______ A) i n t h e w o mb of the ba by' s mo the r i n t h e Earth through geologica l processes in the digestion of the food that the mother ate D) in the explosions of ancient stars 5) In what sense can you truthfully say that you are a part of every person around you? 5) _______ A) W e a r e c o n tin ual ly exc ha ngi ng our ato ms. T h e r e a re more people alive now than have ever lived. We all live on the same planet and share the same resources. D) We all share the same genetic code. 6) Considering how small atoms are, what are the chances that at least one of the atoms exhaled in your first breath will be in your last breath? 6) _______ A) n o t p o s s i b l e a t all bec aus e ato m do n't last tha t lon g n o t v e r y likely because atoms are constantl y demateri alizing very probable because of how incredibly small atoms are D) There's not really a way that scientists are able to make such an estimate. 7) Does it make sense to say that a textbook is about 99.9 percent empty space? 7) _______ A) N o ....
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ch12 - MULTIPLE CHOICE. Choose the one alternative that...

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