A. are made up of hot lava deposits.
B.consist of solid materials ejected from volcanoes
C.are gases such as carbon diocide and water that erupt from volcanoes
D.are particles in magma that have very low viscosity
2007-06-14 05:05:48 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
B!
Pyro=fire Clast=piece of rock
A pyroclast (also known as tephra) is a piece of material that is ejected from a volcano. A pyroclastic flow is a mixture of hot gases, ash, lava, and host rock that flows downhill at ferocious speeds.
2007-06-14 05:49:37 · answer #1 · answered by QFL 24-7 6 · 2⤊ 0⤋
C.are gases such as carbon diocide and water that erupt from volcanoes
Pyroclasts include a variety of gaseous substances given off by active (or, at times, by dormant) volcanos. These include gases trapped in cavities (vesicles) in volcanic rocks, dissolved or dissociated gases in magma and lava, or gases emanating directly from lava or indirectly through ground water heated by volcanic action
2007-06-14 12:11:24 · answer #2 · answered by D M 2 · 0⤊ 1⤋
C.
Doug
2007-06-14 12:10:09 · answer #3 · answered by doug_donaghue 7 · 0⤊ 1⤋
Answer "b" is correct
2007-06-15 00:13:08 · answer #4 · answered by Warren N 1 · 0⤊ 0⤋