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
Extinction and immigration of bird species on the California Channel Islands between 1917 and 1968 (
From high cotransduction frequencies, close linkage is inferred
Air flows through the PCV valve during idle, cruising, and light-load conditions.
Whole fruits and vegetables, whole grains, and legumes are the best food sources of fiber
Food Sources of the Essential Fatty Acids Many oils and nuts
A Short List of Human X-Linked Recessive and X-Linked Dominant Traitsa