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
An example of genetic homology: a comparison of a short amino acid sequence within the p53 protein f
Using Parallax to Determine Distance
Shy children often have a high arousal level in novel social situations. Over time, parents can help ...
Gyres and the Geostrophic Flows
Oatmeal and other whole grain cereals are good sources of carbohydrates to start your morning off
Chart showing average yearly dose of radiation from natural and human-made sources