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
This chart illustrates the bottom up assumption about government. In this, attitudes, culture, and
a) Appropriate chair height b) Chair is too low c) Chair is too high
A high-performance aftermarket air filter often can increase airflow into the engine for more ...
Winds Aloft and Near the Surface: Gradient Flow
The gradient of the B allele of the ABO blood groups from East to West is due to waves of migration
Experiments showing that long- or short-day plants flower in response to night length. Each horizont