Author Question: 15. The danger of volcanic ash is increased when ____. a. it is composed of hydrogen sulfide ... (Read 138 times)

notis · **on:** Jul 13, 2018

15. The danger of volcanic ash is increased when ____.
a. it is composed of hydrogen sulfide compounds
b. the volcano creates rain, making building collapse more likely
c. dry conditions allow it to collapse quickly to form tuff
d. it contacts and melts snowbanks, resulting in flash floods
e. the flammable ash comes into contact with fire or high heat

Question 2

Pyroclastic flows ____.
a. can be protected against in the basement of structures
b. are rarely generated in volcanic eruptions
c. move slowly enough to be avoided
d. cannot move across bodies of water
e. can reach temperatures so hot that they glow