Multiple Choice
Columnar jointing in lava flows occurs due to ____.
A) pyroclastic welding
B) basaltic crystal formation
C) contact of the lava flow with sea water
D) the expansion of lava flow materials
E) cooling and contracting of lava flows
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q29: Not all volcanism results in the origin
Q30: A dense cloud of pyroclastic materials and
Q31: Most of the approximately 3,300 historic eruptions
Q32: Erupting volcanoes eject pyroclastic materials of varying
Q33: Composite volcanoes are also known as _
Q35: Fissure eruptions result in shield volcanoes.
Q36: The relatively small eruptions of the Icelandic
Q37: Some lava flows show a pattern of
Q38: An extinct volcano _.<br>A)existed during a past
Q39: Nearly all remaining active volcanoes _.<br>A)are at