The most dangerous poisonous gas(ses) associated with volcanic activity ____.
a. is hydrogen sulfide
b. are invisible but detectable by smell
c. must be breathed to cause damage
d. can weaken buildings by reacting to form sulfuric acid
e. can mix with moisture to make dangerous aerosols
Question 2
Lava flows ____.
a. move so slowly that they do not present a danger to either life or property
b. are often redirected by emergency efforts
c. can be redirected only with long-term planning and construction
d. move fast and are a threat to life and property
e. move slowly enough that they are usually a threat only to property
Sexual Activity of Heterosexual Couples
Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada
Tectonic Disasters: Volcanic Eruptions
Poisonous Materials
Hydrogen Bond
Shiprock, New Mexico – a volcanic neck