Differentiate between tornado families and tornado outbreaks
The deadliest tornadoes are those that occur in tornado families, i.e., a group or series of tornadoes spawned by the same thunderstorm, often a single long-lived supercell thunderstorm. Tornado outbreaks occur when a large number of tornadoes (typically six or more) form over a particular region.
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What was the major cause of deforestation in Southeast Asia?
A) export of hardwoods during colonial era B) post-WWII timber extraction C) timber industry providing local jobs D) use for construction and fuel by locals E) none of the above
In which of the following places is the pressure gradient force directed from high to low pressure?
A. the northern hemisphere B. all places on Earth C. the equator D. the southern hemisphere
Which of the following components of a "typical" soil is most abundant?
a. water b. gases c. organic matter d. mineral matter e. unweathered rock
One economical drawback of tidal power is that it ____
A) emits an abundance of carbon dioxide into the atmosphere B) ?requires a high initial infrastructure investment C) ?emits particulate matter into the atmosphere D) ?requires a high cost to operate tidal generators