Smart electrical grids
A. involve a two-way flow of energy and information between producers and users of electricity.
B. are not energy efficient.
C. are not commonly used because they are large investments with minimal returns.
D. involve a one-way transmission of energy between producers and users of electricity.
E. are an energy efficient substitute for major household appliances.
Answer: A
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What is a main hazard of this type of volcano?
A) Burning, building collapse, and suffocation from an eruption column and pyroclastic flows
B) Volcanic mudflows and landslides
C) Hot fragments thrown a short distance from the volcano
D) Destruction by moderately fluid lava flows that can flow far from the volcano
In ArcGIS a network dataset can be built from:
A. a geodatabase B. a shapefile C. both of these are correct
The D8 method for deriving flow directions is most effective in steep terrain with well-defined channels.
Answer the following statement true (T) or false (F)
Platyhelminthes were the first organisms to have:
A) fully developed brain. B) notochord. C) central nervous system. D) All of these choices.