Geography
Geography, 06.09.2019 21:30, adyenamaie02

1. a major earthquake in the subduction zone along the coast of chile is just chile’s problem.
select one:
a. true
b. false
2. a melt of which igneous composition will have lowest viscosity?
select one:
a. intermediate
b. ultramafic
c. mafic
d. felsic
3. a normal fault is formed from compressional stress.
select one:
a. true
b. false
4. a reverse fault has laterall displacement.
select one:
a. true
b. false
5. as an ocean wave approaches the coast
select one:
a. speeds up and builds in height
b. it transforms from translatory motion to oscillatory motion
c. it slows down and builds in height
d. the it slows down and gets smaller
6. a magma evolves as it rises through oceanic crust. it's most accurate to say the magma's
select one:
a. iron and magnesium content increase
b. temperature increases
c. water content decreases
d. viscosity increases
e. silica content decreases
7. both a flood basalt eruption and a large meteor impact occurred
select one:
a. at the end of the precambrian
b. at the beginning of the paleozoic
c. at the start of the cenozoic
d. at the end of the mesozoic
e. both c and d
8. oceanic crust is generally than continental crust.
select one:
a. thicker
b. less dense
c. richer in silica
d. younger
e. all of the above
9. oceanic crust subducts under more mafic continental crust.
select one:
a. false
b. true
10. shallow earthquakes
select one:
a. only occur at plate boundaries
b. mostly occur near volcanos
c. are predictable and avoidable
d. mostly occur at plate boundaries
e. both a and c
11. fossil evidence shows life existed on earth as far back as years ago.
select one:
a. 350 million years
b. 3500 million years ago
c. 35 billion years ago
d. 3.5 million years ago
e. 35000 million year ago
12. hazards most associated with strike-slip earthquakes
select one:
a. tsunamis
b. all of the above
c. liquefaction
d. floods
e. resonance
13. iceland is
select one:
a. on the mid atlantic rise
b. shrinking
c. at an ocean to ocean convergent boundary
d. growing
e. a and b
f. b and c
g. c and d
h. a and c
i. a and d
j. all of these
14. in 1973, how did the folks in heimaey, iceland stop lava erupting from the fissure outside town from blocking the harbor entrance?
select one:
a. they dug trenches to divert the flow.
b. they built cement walls to stop the advance.
c. they sprayed seawater to divert the flow.
d. they poured cement in the volcano to plug it.
15. in science a hypothesis is never
select one:
a. an educated guess
b. the current best explanation
c. a statement of fact
d. based upon one or several proven hypotheses
e. both b and d
16. in science a theory is never
select one:
a. an educated guess
b. based upon one or several proven hypotheses
c. a statement of fact
d. the current best explanation
e. both b and d
17. cinder cones are associated
select one:
a. hot spots
b. mid-ocean ridges
c. fissure flows
d. transform plate boundaries
e. volcanic arcs
f. convergent plate boundaries
18. many of the divisions of the geologic time scale are
select one:
a. based on changes in the milankovitch cycles
b. just put there to keep things orderly
c. based on tectonic plate configurations
d. based on mass extinctions
e. both a and c
19. mount shasta in the southern cascades is part of a
select one:
a. composite cone
b. caldera
c. lava dome
d. shield volcano
e. cinder cone
20. shield volcanoes are generally associated
select one:
a. transform plate boundaries
b. divergent plate boundaries
c. convergent plate boundaries
d. hot spots
e. mid-oceanic ridges

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1. a major earthquake in the subduction zone along the coast of chile is just chile’s problem.
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