ch24 - 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) The Earth's oceans likely evolved 1) _______ A) f r o m t h e c o n d e n s ati on of wa ter va por fro m vol can ic eru pti ons . a s the Earth cooled. with the accumulation of rainfall. D) from the condensation of water vapor in the hydrogen-oxygen rich atmosphere. 2) The Earth's earliest atmosphere was lacking in 2) _______ A) free oxygen. B) photosy nthesis. hydrogen. D) carbon dioxide. 3 ) The process of photosynthes is is important because photosynthes is 3) _______ A) i s a n e n e r g y s our ce tha t dri ves the me tab oli c pro ces s. c o n tr i b uted to the develop ment of an ozone layer. converts carbon dioxide and water to hydrocarbon and free oxygen. D) all of these 4) Plants evolved the ability of photosynthes is during the 4) _______ A) Precambrian period. B) Cambri an period. Paleozoic era. D) none of the above. 5 ) The Earth's atmosphere probably developed from gases escaping from the interior of the Earth during volcanic eruptions. This outgassing also produced the 5) _______ A) E a r t h's oce ans . E a rt h' s numerou s mountain belts. Earth's protective ozone layer. D) Earth's ionosphere. 6) The Earth's earliest atmosphere was most likely composed of hydrogen, helium, 6) _______ A) oxygen, and ozone. B) methane , and ammonia. methane, and nitrogen. D) oxygen, and nitrogen. 7 ) Most of Earth's water is in the 7) _______ A) rivers, lakes, and stream. B) oceans. ground. D) polar ice caps. 8 ) What is the origin of Earth's oceans? 8) _______ A) debris from comets B) the melting of polar ice caps volcanic eruptions D) A and C 9 ) Earth's original atmosphere was 9) _______ A) o b l i t e r a t e d aft er the birt h of the Su n. ri c h in both O 2 and O 3 . very similar to the atmosphere we have today. D) a mixture of N 2 , CO 2 , and O 3 . ESSAY. Write your answer in the space provided or on a separate sheet of paper. 10) What is the significance of the ozone layer? 11) What impact does the formation of the ozone layer have on our planet? 12) Why are temperature fluctuations greater over land than water? MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 13) Going from continental land toward the deep ocean basin, the continental margin consists of 13)...
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This note was uploaded on 02/11/2011 for the course PS 300 taught by Professor Na during the Spring '11 term at Cornell University (Engineering School).

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ch24 - MULTIPLE CHOICE. Choose the one alternative that...

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