What is the term for an unconsolidated accumulation of any size of pyroclastic grains? 
1.Aerosol 
2.accretionary lapilli 
3.Peles hair and tears 
4.Tephra 
5.Tuff

Which of the following events is a warning sign of imminent eruption? 
1. earthquake activity 
2.change in heat flow from the volcano's surface 
3.bulges on the volcano's surface 
4.increase in gas emissions and hydrothermal activities 
5.all of the above are warning signs.

Which of the following volcanic areas is not part of the Ring of Fire? 
1. Iceland 
2.Aleutians, Alaska 
3.Cascades, northwest United States 
4.Mt. Pinatubo, Philippines 
5.Andes, South America

Identify the false statement. The eruption of Mt. Tambora, Indonesia, in 1815: 
1. suggested Ben Franklin's idea of a link between eruptions and climate was true. 
2.resulted in extremely low temperatures in the northern hemisphere during 1816. 
3.produced "the year without a summer." 
4.produced such dreary weather it inspired the writing of Frankenstein. 
5.is the only documented example of possible eruption-triggered coolness.