2.
The most common lava flow, has surfaces of rough jagged blocks with dangerously sharp edges and spiny projections
A
aa flows
B
pahoehoe flows
C
lava flows
3.
These lava flows exhibit smooth surfaces that often resemble the twisted braids of rope
A
aa flows
B
pahoehoe flows
C
lava flows
4.
True or false: cave like tunnels in hardened basaltic flows are called lava tubes
A
True
B
False
C
5.
These volcanoes are produced by accumulations of fluid basaltic lavas and exhibit the shape of a broad, slightly domed structure that resembles a warrior's shield
A
Shield
B
Cinder Cones
C
Composite Cones
6.
These volcanoes are built from ejected lava fragments that take on the appearance of cinders as they begin to harden in flight
A
Shield
B
Cinder Cones
C
Composite Cones
7.
Also called stratovolcanoes, mostly located in the relatively narrow one that rims the Pacific Ocean (Ring of Fire)
A
Shield
B
Cinder Cones
C
Composite Cones
8.
True or false: Hot gases infused with incandescent ash and large lava fragments are referred to as pyroclastic flows and nuree ardentes
A
True
B
False
C
9.
True or False: large composite cones may generate a type of very fluid mudflow referred to by the Indonesian name of Lahar
A
True
B
False
C
10.
These are formed as igneous rocks cool and develop shrinkage fractures thta produce elongated pillar like columns, such as in the Giant's Causeway
