Where likely sources of debris flows are a short distance upstream and the channel gradient is high, ____.
a. a trip wire is more effective than an acoustic flow meter for debris flow warnings
b. sirens should not be used in debris early warning systems
c. warning time for a debris flow may be too short to allow for evacuation
d. the danger to humans from a debris flow is minimized
e. debris flows and mudflows will never be covered by flood insurance
Question 2
Levees are ____.
a. less susceptible to failure when built from local materials
b. an alternative to spillways for protection of structures from floods
c. always artificial, not natural
d. sometime intentionally breached during floods
e. reinforced by piping and sand boils
El Niño and areas of high marine primary production around the Galapagos Islands. Noti
Major moons of Uranus in order of increasing distance (left to right), at their proper relative size
Step stool can help clients get onto and off of a high table.
Channel Mediated Facilitated Diffusion
Answer the following short answer, please show your steps and include the formulas used