Any pyroclastic particle that is 2 to 64 mm in diameter and is consisting of frozen lava clots, pumice fragments, or ash clumps can be called:
a. volcano relict
b. volcano bomb
c. volcano ash
d. lapilli
Answer: d. lapilli
You might also like to view...
Precolonial Mexico City may be likened to what other city in its layout?
A) Ho Chi Minh City B) Beijing C) São Paulo D) Fez E) Curitiba
Which of the following is true for nearly all of the most abundant, naturally occurring fatty acids?
A) Nearly all of them contain an even number of carbon atoms. B) About 70% of them contain an even number of carbon atoms. C) Approximately half of them contain an even number of carbon atoms. D) Nearly all of them contain an odd number of carbon atoms.
The thermocline defines the ___________, and the pycnocline defines the ___________
a) Area where the water density rapidly changes; area where the temperature rapidly changes b) Area where the water temperature rapidly changes; area where the water density rapidly changes c) Area where the temperature of the water is at equilibrium; the density of the water is at equilibrium d) Area where salt concentration rapidly changes; area where oxygen rapidly changes
Soils with shale-derived parent material usually differ from those from sandstone-derived parent material in that they tend to
A. resist weathering more than sandstone-derived soils. B. be more drought-prone than the sandstone-derived soils. C. break down organic matter slower than sandstone-derived soils. D. form clays with more soluble cations than the sandstone-derived soils.