1. Of all the planets in the solar system, Earth is the only planet to currently have large quantities of liquid water on its
surface.
a. True
b. False
2. The ocean holds more than 97 percent of Earth's water.
a. True
b. False
3. Gravity was important in the formation of our planet because it pulled dense metals such as iron and nickel inward,
forming Earth's core.
a. True
b. False
4. Deep-sea fossils suggest that life evolved within the last million years.
a. True
b. False
5. There is convincing evidence that water once flowed on the surface of Mars.
a. True
b. False
6. The universe fbegan fto fform faround f13 fbillion fyears fago.
a. True
b. False
7. Marine fscience fdraws fon finformation ffrom fdisciplines fof fgeology, fbiology, fchemistry, fphysics, fand fengineering.
a. True
b. False
8. Scientific fhypotheses fare fnever frevised for fupdated.
a. True
b. False
9. Saturn’s fmoon, fTitan, fis fknown fto fpossess fliquid fhydrocarbons fon fits fsurface.
a. True
b. False
10. The faverage fland felevation fon fEarth fis fgreater fthan fthe faverage fdepth fof fthe focean.
a. True
b. False
Indicate fthe fanswer fchoice fthat fbest fcompletes fthe fstatement for fanswers fthe fquestion.
,11. The ftemperature fof fthe focean fabout ffour fbillion fyears fago fwas f .
a. about fthe fsame fas ftoday’s focean
b. much fcolder fthan fthat fof ftoday’s focean
c. extremely fhot fcompared fwith
ftoday’s focean
d. only fslightly fwarmer fthan ftoday’s focean
12. Planets fother fthan fEarth fwith fliquid fon for fnear fthe fsurface fare f.
a. nonexistent
b. less frare fthan fwe fthought
c. extremely fcommon fbut fonly fin fthe fform fof fwater
d. extremely fcommon fbut fonly fin fthe fform fof fice
13. About f percent fof fEarth's fwater fis ffound fin fthe focean.
a. 97
b. 71
c. 67
d. 30
14. Evidence fsuggests fthe funiverse fbegan fabout f13.7 fbillion fyears fago fin fa f.
a. slow faccretion fof fatoms
b. very flarge fgalaxy
c. cataclysmic fexpansion fof fenergy
fand fmatter
d. protostar
15. What ftheory fbest fexplains fhow fthe funiverse fwas fformed?
a. condensation
ftheory
b. scientific fmethod
c. outgassing ftheory
d. big fbang ftheory
16. Which fphrase fbest fdescribes fbiosynthesis?
a. The fdiscovery fof forganic fmolecules fin fspace
b. The fevolution fof fliving forganisms ffrom fsimple forganic fbuilding fblocks
c. The fevolution fof finorganic fmolecules fin fseawater
d. Experiments fthat fshow fthat fearly forganisms flived fin fan foxygen-
free fenvironment
17. To frecreate fan fenvironment ffor fbiosynthesis, fscientists fincluded fwhich felement fin ftheir fexperiments?
a. extremely fcold ftemperatures
b. oxygen
c. ocean fwater
d. mixtures fof fdissolved fcompounds fand fgases fthought fto fbe fsimilar fto fEarth’s fearly fatmosphere
, 18. On fa fplanetary fscale, fthe focean fcomprises fabout f of fEarth’s fmass.
a. 8%
b. 71%
c. 20%
d. 0.02%
19. Scientists fpredict fthat four fplanet fin fits fcurrent fform fwill fexist ffor fabout fanother f .
a. 5 fbillion fyears
b. f1 fmillion fyears
c. 500
fmillion
fyears
d. 13 fbillion fyears
20. Oxygen ffirst fbegan fto faccumulate fin fEarth’s fatmosphere fas fa fresult fof f .
a. biosynthesis
b. cellular frespiration
c. methane fsynthesis
d. photosynthesis
21. Which fstatement fis fmost fconsistent fwith fthe fscientific fmethod?
a. Hypotheses fcannot fbe frevised fafter fthey fare fproposed.
b. Hypotheses fare ftested fthrough fobservation fand
fcontrolled fexperiments.
c. Scientific flaws falways farise ffully fformed fand fin fcorrelating fgroups.
d. Theories fcannot fbe fmodified fafter fthey fare ftested.
22. An fexample fof fanother fbody fin four fsolar fsystem fthat fhas fan focean fis f .
a. the fmoon fof fEarth
b. Europa
c. Mars
d. Saturn
23. In fthe fscientific fmethod, fscientific ftheories fmust fbe f .
a. tested fand fconsistently fsupported fby fobservations for fexperiments
b. verified fby fthe fleading fauthorities fin fthe ffield
c. consistent fwith fprevious, funiversally faccepted
fscientific fconcepts
d. consistent fwith fthe ffact fthat fthe focean fis fof fgreat fage
24. Evidence fsuggests fthat fthe ffirst fliving fmolecules fmay fhave fformed fnear f .
a. the fcontinents
b. subduction fzones
c. the fsurface fof fthe focean
d. mineral-rich fseeps fon fthe focean ffloor