A ________ is a mixture of gas and pyroclastic debris that is so dense that it hugs the ground as it flows rapidly into low areas.
A. pyroclastic flow
B. lava flow
C. pahoehoe lava flow
D. change in viscosity
E. silica flow
Answer: A
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The following statement describes which subatomic particle best?It does not have an electrical charge.
A. an electron B. a proton C. a neutron D. A and B E. B and C
Generally, the further the distance from the source of an innovation, the slower the diffusion of it.
Answer the following statement true (T) or false (F)
Pastoral nomadism is most commonly found in which climate region?
A) humid low-latitude B) dry C) warm mid-latitude D) cold mid-latitude E) polar
Which of the following is true?
A) Both embryonic and adult stem cells are usually pluripotent. B) Both embryonic and adult stem cells are usually multipotent. C) Embryonic stem cells are usually pluripotent, but adult stem cells are usually multipotent. D) Embryonic stem cells are usually multipotent, but adult stem cells are usually pluripotent.