Lava domes form from ____
A)mafic and intermediate magma
B)intermediate magma
C)viscous felsic and intermediate magma
D)pyroclastic materials
E)fissure eruptions
C
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If expansive soils and subsidence are included, total losses from mass wasting in the U.S. are many
times greater than the annual combined losses from earthquakes, volcanoes, floods, hurricanes, and tornadoes. Indicate whether the statement is true or false.
A distinctive characteristic of prokaryotes is ________
A) their oxygen based metabolism B) their lack of a separation between the DNA and the rest of the cell C) their thick cell walls that separate the DNA from the rest of the cell D) their ability to produce sugars E) their methane based metabolism
Due to a strong influence at the polar latitudes, ________ was responsible for ice advancing in the Northern Hemisphere every 41,000 years between 2.6 million and 1.0 million years ago.
A. eccentricity B. obliquity C. precession D. All of the choices are correct.
The rural cooperatives that Mexico created in 1917 are called
A. Porfirios B. Campos C. Ejidos D. Salidas