7157 - 1 - Pa ge 1
Na me: ____________________________________________
Ques ti ons 1 through 3 refer to the fol l owi ng:
3)
In whi ch cros s s ecti on do the a rrows best s how the convecti on occurri ng wi thi n
the a s thenos phere benea th l i ne XY on the map s hown?
The ma p bel ow s hows the Mi d-Atl anti c Ri dge. Poi nts A through D a re l oca ti ons on the
ocea n fl oor. Li ne XY connects l oca ti ons i n North Ameri ca a nd Afri ca .
A)
B)
C)
1)
Sampl es of ocea n-fl oor bedrock were col l ected a t poi nts A, B, C, a nd D on the
gi ven map. Whi ch s equence s hows the correct order of the a ge of the bedrock
from oldest to youngest?
A)
B)
2)
D ‚ C ‚ B ‚ A
A ‚ D ‚ B ‚ C
C)
D)
A ‚ B ‚ D ‚ C
C ‚ B ‚ D ‚ A
The boundary between whi ch two tectoni c pl a tes i s mos t s i mi l a r geol ogi ca l l y to
the pl a te bounda ry a t the Mi d-Atl anti c Ri dge?
A)
B)
C)
D)
Paci fi c and Nazca
Cocos and Ca ri bbea n
Na zca a nd South Ameri can
Eura s i an a nd Indi a n-Aus tra l i an
D)
7157 - 1 - Pa ge 2
4)
Whi ch ma p best i ndi ca tes the proba bl e l oca ti ons of conti nents 100 mi l l i on yea rs
from now i f tectoni c pl ate movement conti nues a t i ts pres ent ra te a nd di recti on?
8)
The ma p bel ow s hows a porti on of Ea rth's s urfa ce. Poi nts X and Y a re l oca ti ons
on the l i thos phere.
A)
B)
Whi ch of the fol l owi ng cros s s ecti ons s hows the i nferred movement of ma teri a l
i n the a s thenos phere benea th poi nts X a nd Y?
C)
A)
C)
B)
D)
D)
5)
6)
Why does the ocea ni c crus t s i nk benea th the conti nenta l crus t at a s ubducti on
bounda ry?
A) The oceani c crus t i s pul l ed downwa rd by Earth's magneti c fi el d.
B) The conti nenta l crus t i s pul l ed upwa rd by the Moon's gra vi ty.
C) The conti nenta l crus t ha s a more ma fi c compos i ti on.
D) The oceani c crus t ha s a grea ter dens i ty.
3,000DC
B)
6,000DC
C)
2,000DC
D)
5,000DC
In whi ch Ea rth l a yer are most convecti on currents that ca us e s ea fl oor s prea di ng
thought to be l oca ted?
A) i nner core
C) outer core
B) a s thenos phere
D) crus t
The Ma ri ana Trench was mos t l i kel y crea ted by the
A)
B)
C)
D)
Whi ch tempera ture i s i nferred to exi s t i n Ea rth's pl a s ti c ma ntl e?
A)
7)
9)
10)
Sci enti s ts ha ve i nferred the s tructure of Earth's i nteri or mai nl y by a na l yzi ng
A)
B)
11)
movement of the Pa ci fi c Pl a te over the Ha wa i i Hot Spot
di vergence of the Eura s i a n and Phi l i ppi ne Pl a tes
convergence of the Pa ci fi c a nd Phi l i ppi ne Pl a tes
s l i di ng of the Pa ci fi c Pl ate pas t the North Ameri ca n Pl a te
Ea rth's s ei s mi c data
the Moon's compos i ti on
C)
D)
the Moon's i nteri or
Ea rth's s urface fea tures
Beneath whi ch s urfa ce l oca ti on i s Ea rth's crus t the thinnest?
A)
B)
Sa n Andrea s Fa ul t
the center of South Ameri ca
C)
D)
Ea s t Pa ci fi c Ri dge
Ol d Forge, New York
7157 - 1 - Pa ge 3
12)
Whi ch condi ti ons normal l y can be found i n Ea rth's a s thenos phere, produci ng a
pa rti al mel ti ng of ul trama fi c rock?
A)
B)
C)
D)
13)
15)
The da ta ta bl e bel ow s hows the ori gi n depths of a l l l a rge-ma gni tude
ea rthqua kes over a 20-year peri od.
tempera ture = 3,500DC;
pres s ure = 0.5 mi l l i on a tmos pheres
tempera ture = 2,000DC;
pres s ure = 0.1 mi l l i on a tmos pheres
tempera ture = 6,000DC;
pres s ure = 4 mi l l i on a tmos pheres
tempera ture = 1,000DC;
pres s ure = 10 mi l l i on atmos pheres
The cros s s ecti on bel ow s hows the di recti on of movement of a n ocea ni c pl ate
over a mantl e hot s pot, res ul ti ng i n the forma ti on of a cha i n of vol ca noes
l a bel ed A, B, C, a nd D. The geol ogi c a ge of vol ca no C i s s hown.
Accordi ng to thes e da ta , mos t of thes e ea rthqua kes occurred wi thi n Ea rth's
A) outer core
C) l i thos phere
B) as thenos phere
D) s ti ffer ma ntl e
16)
Whi ch two tectoni c pl a tes are s epa rated by a mi d-ocea n ri dge?
A)
B)
C)
D)
What a re the mos t l i kel y geol ogi c ages of vol canoes B a nd D?
A)
B)
C)
D)
14)
B is
B is
B is
B is
5 mi l l i on yea rs ol d a nd D i s 12 mi l l i on yea rs ol d.
9 mi l l i on yea rs ol d a nd D i s 9 mi l l i on yea rs ol d.
2 mi l l i on yea rs ol d a nd D i s 6 mi l l i on yea rs ol d.
10 mi l l i on yea rs ol d and D i s 4 mi l l i on yea rs ol d.
At whi ch of the fol l owi ng pl ate boundari es i s one l i thos pheri c pl ate s l i di ng
under a nother?
A)
B)
C)
D)
Na zca Pl a te and Pa ci fi c Pl ate
Indi an-Aus tra l i a n Pl ate a nd Anta rcti c Pl a te
Na zca Pl a te and Anta rcti c Pl ate
Paci fi c Pl a te a nd Indi a n-Aus tra l i a n Pl a te
Indi a n-Aus tral i a n and Eura s i a n
Indi a n-Aus tral i a n and Pa ci fi c
North Ameri ca n a nd South Ameri ca n
North Ameri ca n a nd Euras i a n
7157 - 1 - Pa ge 4
17)
The cros s s ecti on bel ow s hows a n underwater mountai n ra nge i n the Atl a nti c
Ocea n. The oceani c bedrock i s compos ed ma i nl y of ba s a l t. Poi nts X a nd Y a re
l oca ti ons i n the bedrock that ha ve been di vergi ng a t the s ame ra te. The
movement of the North Ameri ca n Pl a te a nd Euras i a n Pl ate i s s hown by the two
a rrows .
19)
Whi ch bl ock di agra m best repres ents the rel a ti ve di recti on of pl a te moti on a t the
Sa n Andrea s Fa ul t?
A)
B)
Whi ch s ta tements best des cri be the a ge a nd magneti c ori entati on of the ba s a l ts
found a t l oca ti ons X a nd Y on the cros s s ecti on s hown?
A)
B)
C)
D)
18)
The bas a l t a t l oca ti on X i s younger than the ba s a l t at l oca ti on Y. Both
l oca ti ons ha ve the s ame ma gneti c ori enta ti on.
The bas a l ts a t l oca ti ons X a nd Y a re the s a me a ge. Both l ocati ons ha ve the
s ame ma gneti c ori enta ti on.
The bas a l t a t l oca ti on X i s ol der tha n the ba s al t a t l ocati on Y. Loca ti on X ha s
revers ed ma gneti c ori enta ti on a nd l oca ti on Y ha s norma l ma gneti c
ori enta ti on.
The bas a l ts a t l oca ti ons X a nd Y a re the s a me a ge. Loca ti on X ha s norma l
magneti c ori entati on and l ocati on Y has revers ed magneti c ori entati on.
C)
Compared to the conti nenta l crus t, the ocea ni c crus t i s
A)
B)
more dens e a nd thi nner
l es s dens e a nd thi nner
C)
D)
more dens e a nd thi cker
l es s dens e and thi cker
D)
20)
Convecti on currents i n the pl a s ti c ma ntl e a re bel i eved to ca us e di vergence of
l i thos pheri c pl ates a t the
A)
B)
21)
Peru-Chi l e Trench
Ca nary Is l a nds Hot Spot
C)
D)
Ma ri ana Trench
Icel a nd Hot Spot
Compa red to the conti nenta l crus t, the ocea ni c crus t i s
A) l es s dens e a nd l es s fel s i c
C) more dens e a nd more mafi c
B) l es s dens e a nd l es s ma fi c
D) more dens e a nd more fel s i c
7157 - 1 - Pa ge 5
22)
23)
Whi ch obs erva ti on a bout the Mi d-Atl a nti c Ri dge regi on provi des the best
evi dence tha t the s ea fl oor has been s prea di ng for mi l l i ons of yea rs ?
Ques ti ons 27 a nd 28 refer to the fol l owi ng:
A)
B)
C)
D)
In the di a gra m of Ea rth s hown bel ow, l etters B, C, a nd D repres ent l a yers of Ea rth.
Letter Q repres ents a l oca ti on on Earth's s urfa ce.
The bedrock of the ri dge a nd nea rby s ea fl oor i s i gneous rock.
Sea fl oor bedrock i s younger nea r the ri dge and ol der farther away.
Severa l fa ul ts cut a cros s the ri dge a nd nea rby s ea fl oor.
The ri dge i s the l oca ti on of i rregul ar vol ca ni c erupti ons .
Acti ve vol ca noes a re most abunda nt al ong the
A)
B)
C)
D)
edges of tectoni c pl a tes
ea s tern coa s tl i ne of conti nents
23.5D N and 23.5D S pa ra l l el s of l a ti tude
equa tori a l ocea n fl oor
24)
Ba s ed on the theory of pl a te tectoni cs , i t i s i nferred tha t over the pa s t
250 mi l l i on yea rs North Ameri ca ha s moved toward the
A) s outheas t
C) northea s t
B) northwes t
D) s outhwes t
25)
What ha ppens to the dens i ty a nd tempera ture of rock wi thi n Ea rth's i nteri or a s
depth i ncreas es ?
A) dens i ty decrea s es and tempera ture decrea s es
B) dens i ty i ncreas es a nd temperature decrea s es
C) dens i ty i ncreas es a nd temperature i ncrea s es
D) dens i ty decrea s es and tempera ture i ncrea s es
26)
27)
What does gra ni te bedrock found hi gh on a mountai ntop i ndi ca te?
A)
B)
C)
D)
A l arge a mount of eros i on ha s occurred.
Sea l evel ha s ri s en.
The crus t ha s been s i nki ng.
Gl obal tempera tures ha ve cool ed.
Whi ch l etter i n the gi ven di agra m best repres ents Ea rth's ma ntl e?
A)
28)
29)
B)
B
Q
C)
C
D)
D
Wha t i s the proba bl e dens i ty of the gra ni ti c bedrock a t Q i n the gi ven di a gra m?
A)
3.0 g/cm 3
C)
2.7 g/cm3
B)
3
D)
5.5 g/cm3
1.0 g/cm
Ea rth's i nner core i s i nferred to be s ol i d ba s ed on the a na l ys i s of
A) ma gneti c pol e revers a l s
C) ra di oacti ve deca y ra tes
B) s ei s mi c wa ves
D) crus ta l rocks
7157 - 1 - Pa ge 6
30)
Whi ch gra ph best s hows the i nferred dens i ty of Ea rth's i nteri or as depth
i ncrea s es from the upper mantl e to the l ower ma ntl e?
35)
Whi ch of the fol l owi ng bl ock di a gra ms best s hows a tra ns form fa ul t?
A)
A)
C)
B)
C)
B)
D)
D)
31)
What pa rt of Ea rth's i nteri or i s i nferred to ha ve convecti on currents tha t ca us e
tectoni c pl a tes to move?
A)
B)
32)
a s thenos phere
ri gi d mantl e
C)
D)
i nner core
outer core
The edges of most l i thos pheri c pl a tes a re cha ra cteri zed by
A)
B)
C)
D)
revers ed ma gneti c ori enta ti on
unus ual l y ra pi d ra di oacti ve deca y
l ow P-wave a nd hi gh S-wa ve vel oci ty
frequent vol ca ni c a cti vi ty
33)
Al terna ti ng pa ral l el bands of normal a nd revers ed ma gneti c pol a ri ty a re found
i n the bas a l ti c bedrock on ei ther s i de of the
A) Mi d-Atl a nti c Ri dge
C) Peru-Chi l e Trench
B) Yel l ows tone Hot Spot
D) Sa n Andreas Fa ul t
34)
When two tectoni c pl a tes col l i de, ocea ni c crus t us ua l l y s ubducts benea th
conti nenta l crus t becaus e ocea ni c crus t i s pri ma ri l y compos ed of i gneous rock
tha t ha s
A) hi gh dens i ty and i s fel s i c
C) l ow dens i ty a nd i s fel s i c
B) l ow dens i ty and i s ma fi c
D) hi gh dens i ty a nd i s ma fi c
7157 - 1 - Pa ge 7
36)
The bl ock di agra m bel ow repres ents the pres ent ocea n fl oor. The whi te a rrows
s how the movement of the ocea n fl oor a nd the bl a ck arrows s how the movement
of the a s thenos phere.
Whi ch cha ra cteri s ti c of the ocea n-fl oor bedrock i s best des cri bed by the
40)
The ma p bel ow s hows the northern s ecti on of the bounda ry between the
Ara bi a n Pl ate a nd the Afri ca n Pl a te. Arrows s how the rel a ti ve di recti on of pl ate
moti on.
a nd
s ymbol s i n the di agra m?
37)
A)
= norma l ma gneti c pol a ri ty;
B)
= revers ed ma gneti c pol a ri ty;
C)
= younger a ge;
D)
= ol der a ge;
= ol der age
= younger age
ea s t coa s t of Aus tra l i a
wes t coa s t of Afri ca
C)
D)
Whi ch type of pl ate boundary i s l ocated at the Jorda n Faul t?
A) trans form
C) s ubducti on
B) di vergent
D) convergent
eas t coas t of North Ameri ca
wes t coa s t of South Ameri ca
The movement of tectoni c pl ates i s i nferred by many s ci enti s ts to be dri ven by
A)
B)
C)
D)
39)
= norma l ma gneti c pol ari ty
Whi ch coa s tal a rea i s mos t l i kel y to experi ence a s evere ea rthqua ke?
A)
B)
38)
= revers ed ma gneti c pol ari ty
s ol i di fi ca ti on i n the l i thos phere
dens i ty di fferences i n the tropos phere
convecti on currents i n the a s thenos phere
ti da l moti ons i n the hydros phere
41)
A)
B)
C)
D)
Accordi ng to tectoni c pl ate ma ps , New York State i s pres entl y l ocated
A)
B)
C)
D)
a t a convergent pl a te bounda ry
a bove a ma ntl e hot s pot
a bove a mi d-ocean ri dge
near the center of a l arge pl a te
Whi ch of the fol l owi ng combi na ti ons of tempera ture a nd pres s ure i s i nferred to
occur wi thi n Ea rth's s ti ffer ma ntl e?
42)
2.0 mi l l i on
0.4 mi l l i on
0.4 mi l l i on
2.0 mi l l i on
atmos pheres
atmos pheres
atmos pheres
atmos pheres
Compa red to Ea rth's conti nental crus t, Earth's ocea ni c crus t i s
A)
B)
43)
5,500DC a nd
5,500DC a nd
3,500DC a nd
3,500DC a nd
thi nner a nd l es s dens e
thi nner a nd more dens e
C)
D)
thi cker a nd l es s dens e
thi cker a nd more dens e
Anta rcti ca 's l oca ti on a nd cl i ma te cha nged over the l a s t 200 mi l l i on yea rs
beca us e Anta rcti ca moved
A)
B)
C)
D)
s outhward, res ul ti ng i n a col der cl i mate
northwa rd, res ul ti ng i n a col der cl i ma te
northwa rd, res ul ti ng i n a wa rmer cl i ma te
s outhward, res ul ti ng i n a wa rmer cl i ma te
7157 - 1 - Pa ge 8
44)
Whi ch s ta tement correctl y des cri bes the dens i ty of Ea rth's ma ntl e compa red to
the dens i ty of Ea rth's core a nd crus t?
A)
B)
C)
D)
45)
The
The
The
The
ma ntl e
ma ntl e
ma ntl e
ma ntl e
is
is
is
is
47)
Arrows i n the bl ock di a gra m bel ow s how the rel ati ve movement a l ong a tectoni c
pl a te bounda ry.
more dens e tha n both the core a nd the crus t.
l es s dens e tha n both the core a nd the crus t.
more dens e tha n the core, but l es s dens e tha n the crus t.
l es s dens e tha n the core, but more dens e tha n the crus t.
The cros s s ecti on bel ow s hows a porti on of Ea rth's crus t.
Whi ch obs erva ti on provi des the most di rect evi dence tha t crus ta l pl ate col l i s i on
ha s occurred near thi s regi on?
A)
B)
C)
D)
46)
a l terna ti ng l a yers of s ha l e a nd l i mes tone bedrock
fol di ng of the s edi menta ry l a yers
di fferent thi cknes s es of the s edi mentary l a yers
a bs ence of a n i gneous i ntrus i ve rock
Between whi ch two tectoni c pl a tes does thi s type of pl a te bounda ry exi s t?
What i s Ea rth's i nferred i nteri or pres s ure, i n mi l l i ons of a tmos pheres , a t a depth
of 3,500 ki l ometers ?
A)
6,500
B)
5,500
C)
2.8
D)
1.9
A)
B)
C)
D)
North Ameri ca n Pl a te a nd Eura s i an Pl a te
Pa ci fi c Pl ate a nd North Ameri ca n Pl a te
Nazca Pl a te a nd South Ameri ca n Pl ate
Eura s i a n Pl a te a nd Indi an-Aus tra l i a n Pl ate
7157 - 1 - Pa ge 9
48)
The di agra m bel ow s hows cutaway vi ews of the i nferred i nteri or l a yers of the
pl a nets Mercury and Venus .
Ques ti ons 49 a nd 50 refer to the fol l owi ng:
The ma p bel ow s hows Ea rth's Southern Hemi s phere a nd the i nferred tectoni c
movement of the conti nent of Aus tral i a over geol ogi c ti me. The a rrows between the
dots s how the rel a ti ve movement of the center of the conti nent of Aus tra l i a. The
pa ra l l el s of l a ti tude from 0D to 90D s outh are l a bel ed.
What i s the rea s on for the devel opment of the i nteri or l a yers of thes e two
pl a nets ?
A)
B)
C)
D)
Hea t from the Sun mel ted the s urfa ce rocks to form the ma ntl es a bove the
cores .
Impa ct events a dded the ma ntl e rock a bove the cores .
Gra vi ty s epa ra ted the cores a nd mantl es due to thei r dens i ty di fferences .
Ra pi d hea t l os s caus ed the cores to s ol i di fy before the ma ntl es .
49)
The geogra phi c pos i ti on of Aus tra l i a on Ea rth's s urface ha s been changi ng
ma i nl y beca us e
A) Ea rth's rota ti on ha s s pun Aus tral i a i nto di fferent l oca ti ons
B) hea t energy ha s been crea ti ng convecti on currents i n Earth's i nteri or
C) the ti l t of Earth's a xi s ha s cha nged s everal ti mes
D) the gra vi ta ti onal force of the Moon has been pul l i ng on Earth's l a ndma s s es
50)
Ba s ed on the ma p s hown, duri ng whi ch geol ogi c ti me i nterva l di d Aus tral i a mos t
l i kel y have a wa rm, tropi ca l cl i mate becaus e of i ts l oca ti on?
A)
B)
Ca rboni ferous
Eocene
C)
D)
Ca mbri a n
Late Permi an
7157 - 1 - Pa ge 10
51)
The di agra m bel ow repres ents the pattern of norma l and revers ed magneti c
pol ari ty a nd the rel a ti ve a ge of the i gneous bedrock compos i ng the ocea n fl oor
on the ea s t s i de of the Mi d-Atl a nti c Ri dge. The ma gneti c pol a ri ty of the bedrock
on the wes t s i de of the ri dge ha s been del i beratel y l eft bl a nk.
52)
The di a gra m bel ow s hows the ma gneti c pol a ri ty pres erved by mi nera l s wi thi n
the bedrock of the ocea ni c crus t nea r the Mi d-Atl a nti c Ri dge. Letters A, B, C, a nd D
repres ent l ocati ons i n the ocean-fl oor bedrock.
Whi ch di a gra m bel ow best s hows the ma gneti c pa ttern a nd rel a ti ve age of the
i gneous bedrock on the wes t s i de of the ri dge?
The mos t recentl y formed bedrock i s found a t l oca ti on
A)
A)
C)
B)
D)
A
B)
B
C)
C
D)
D
7157 - 1 - Pa ge 11
53)
The bl ock di agra m bel ow s hows a tectoni c pl a te bounda ry. Poi nts A and B
repres ent l oca ti ons on Ea rth's s urfa ce.
Whi ch gra ph best s hows the depths of mos t ma jor ea rthqua kes whos e
epi centers l i e between A a nd B?
A)
C)
B)
D)
54)
The geol ogi c cros s s ecti on bel ow s hows a regi on of Ea rth's crus t. Rock l a yers A
through E ha ve been l a bel ed. Two i ndex fos s i l s a re s hown a nd thei r l oca ti ons
wi thi n the rock l ayers are i ndi cated.
Evi dence of tectoni c a cti vi ty i n the gi ven cros s s ecti on i s provi ded by the
A) faul ti ng a nd movement of the rock l a yers
B) col l i s i on of crus ta l pl ate boundari es i n the rock l a yers
C) fol di ng a nd ti l ti ng of the rock l a yers
D) i gneous i ntrus i on i nto the rock l a yers
7157 - 1 - Pa ge 12
55)
On the ma p bel ow, the thi ck bl a ckened a reas repres ent l ocati ons where l i vi ng coral s currentl y exi s t. The a rrow poi nts to a l oca ti on where cora l fos s i l s ha ve been found
i n Devoni a n-age bedrock i n New York Sta te.
Devoni an-a ge cora l fos s i l s found i n s ome New York State bedrock a re not l oca ted i n the s ame genera l regi on tha t pres ent-day cora l s a re l i vi ng becaus e duri ng the
Devoni an Peri od
A) cora l s l i ved everywhere on Earth
C) New York Sta te ha d a col der cl i ma te
B) cora l s mi gra ted to New York Sta te
D) New York Sta te wa s cl os er to the equa tor
7157 - 1 - Pa ge 13
Ques ti ons 56 through 58 refer to the fol l owi ng:
The ma p repres ents a porti on of Ea rth's s urface i n the Pa ci fi c Ocea n. The pos i ti ons of i s l a nds , ea rthqua ke epi centers , acti ve vol canoes , and the Tonga Trench are s hown.
Li nes of l ati tude a nd l ongi tude ha ve been i ncl uded.
The cros s s ecti on s hows ea rthqua kes tha t occurred benea th l i ne XY on the ma p. The s cal e a l ong the l eft s i de of the cros s s ecti on i ndi ca tes depth benea th Ea rth's s urfa ce,
a s a re the range of depths for s hal l ow, i ntermedi a te, a nd deep ea rthqua kes . The s ca l e al ong the bottom of the cros s s ecti on i ndi ca tes di s ta nce from the trench.
56)
Whi ch cros s s ecti on bel ow ha s a rrows that best repres ent the rel a ti ve moti on of the crus ta l pl ates a l ong the Wa da ti -Beni off zone benea th the Tonga Trench s hown i n the
map?
A)
57)
58)
B)
C)
The Tonga Trench i s l oca ted a t the tectoni c bounda ry between the Pa ci fi c Pl ate a nd the
A) Phi l i ppi ne Pl ate
B) Na zca Pl ate
C)
D)
Indi a n-Aus tral i a n Pl a te
The greatest number of ea rthqua kes s hown i n the cros s s ecti on occurred
A)
B)
between s ea l evel a nd a depth of 100 km
a t a depth between 100 a nd 300 km
C)
D)
at a depth between 300 a nd 600 km
at s ea l evel
D)
Anta rcti c Pl a te
7157 - 1 - Pa ge 14
59)
Overturni ng ha s not occurred on the geol ogi c cros s s ecti on bel ow. Letters A through H repres ent rock l ayers .
The fol di ng of rock l a yers G through C on the cros s s ecti on s hown wa s mos t l i kel y ca us ed by
A)
B)
the extrus i on of i gneous rock
eros i on of overl yi ng s edi ments
Ques ti ons 60 and 61 refer to the fol l owi ng:
The ma p bel ow s hows the ri s k of dama ge from s ei s mi c a cti vi ty i n the Uni ted Sta tes .
C)
D)
conta ct meta morphi s m
the col l i s i on of l i thos pheri c pl a tes
7157 - 1 - Pa ge 15
60)
In the Uni ted Sta tes , mos t of the major da mage expected from a future
ea rthqua ke i s predi cted to occur nea r a
A)
B)
C)
D)
62)
61)
Accordi ng to the map, whi ch New York Sta te l oca ti on ha s the greatest ri s k of
ea rthqua ke da ma ge?
A)
B)
mi d-ocea n ri dge a nd a di vergent pl a te bounda ry
convergent pl a te bounda ry, onl y
di vergent pl a te bounda ry, onl y
tra ns form pl a te bounda ry and a hot s pot
Bi ngha mton
Pl a tts burgh
C)
D)
El mi ra
Buffa l o
Whi ch cros s s ecti on best repres ents the rel a ti ve l oca ti ons of Ea rth's a s thenos phere, ri gi d mantl e, a nd s ti ffer ma ntl e? [The cross sections are not drawn to scale.]
A)
C)
B)
D)
Ques ti ons 63 through 65 refer to the fol l owi ng:
The cros s s ecti on bel ow s hows the bounda ry between two l i thos pheri c pl a tes . Poi nt X i s a l ocati on i n the conti nenta l l i thos phere. The depth bel ow Earth's s urfa ce i s l a bel ed
i n ki l ometers .
63)
The temperature of the a s thenos phere a t the depth where mel ti ng fi rs t occurs i s
A)
5,000DC
B)
4,200DC
C)
1,300DC
D)
100DC
7157 - 1 - Pa ge 16
64)
Between whi ch two l i thos pheri c pl a tes coul d the gi ven bounda ry be l oca ted?
A) South Ameri ca n Pl ate a nd Afri ca n Pl ate
B) Afri ca n Pl a te a nd Ara bi a n Pl a te
C) Scoti a Pl ate a nd Anta rcti c Pl a te
D) Na zca Pl a te and South Ameri ca n Pl a te
65)
Poi nt X on the gi ven cros s s ecti on i s l oca ted i n whi ch Earth l a yer?
A) outer core
C) a s thenos phere
B) ri gi d ma ntl e
D) s ti ffer ma ntl e
66)
The gra ph bel ow s hows the di fferent vel oci ti es of P-wa ves a nd S-wa ves through Earth's i nteri or.
Whi ch cros s s ecti on best s hows the i nferred thi cknes s of Ea rth's i nteri or l ayers tha t ca us e thes e di fferent vel oci ti es ?
A)
C)
B)
D)