Answers In Creation Online Geology Curriculum

Geology Chapter 11 Test

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1: Divergent plate boundaries produce what type of volcano?: Shield Volcano
Stratovolcano
Composite Volcano
2: This type of lava flow has little gas, is slow moving, and has a hardened crust that is broken into a mass of angular blocks.: Pahoehoe flow
AA flow
Pillow lava
3: The angular blocks in the lava flow in question 2 are called
4: Gas holes in lava rocks are called: gas holes
pores
vesicles
lava bubbles
5: Columnar joints form when interior lava escapes through a crack, leaving a hollow tube.: True
False
6: This type of lava flow has abundant gas, and is fast moving.: Pahoehoe flow
AA flow
Pillow lava
7: This type of lava is extruded underwater. It forms a solid crust immediately upon contact with the water.: Pahoehoe lava
AA lava
Pillow lava
8: Fragments of rock ejected from a volcanic vent are called tephra.: True
False
9: Volcanic bombs form ellipsoidal shapes that are twisted as they fly through the air.: True
False
10: The volcanoes of the Hawaiian Islands are what type of volcano?: Shield volcano
Stratovolcano
composite volcano
11: Convergent plate boundaries produce what type of volcano?: Shield volcano
Composite volcano
12: The shield volcano consists of a steep-sloped cone, with alternating layers of pyroclastics and lava.: True
False
13: The summit of the composite volcano can collapse, forming a...: crater
caldera
volcanic bowl
magma pit
14: The rock formed when an ash flow stops is called...: ashrock
pumice
welded tuff
flow rock
15: A weak spot in the oceanic or continental crust is called...: a hot spot
a crack
a crustal vent
16: Yellowstone caldera is classified as a supervolcano.: True
False
17: Mount Saint Helens is this type of volcano.: Shield volcano
Composite volcano
Supervolcano
18: Crater Lake in Oregon is an example of a: Shield volcano
caldera
supervolcano
19: Fissure eruptions are associated with what type of lava?: Basaltic Lava
Granitic Lava
20: Rising gas can collect, forming a bulge in the lava. These usually harden, leaving behind a several meter high bulge in the landscape. These features are called...: lava bulges
volcanic bulges
volcanic ridges
pressure ridges