Which of the following solar energy uses has been used by people for thousands of years?
A. Active solar heating system
B. Passive heat absorption
C. Parabolic solar collection
D. Cogeneration
E. All of these are correct.
Answer: B
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Which of the following is not a function that organic matter serves in soil?
A) Separates soil particles B) Bonds nutrients C) Cycles nutrients vital for health D) Serves as an energy source for organisms
The large divisions of the Spanish empire were called
A. states B. provinces C. countries D. viceroyalties
If no ocean currents existed and the winds were from the west (left), which City (E or G) would have the lower annual temperature range?
What will be an ideal response?
In some minerals the bonds are equally strong in all directions, therefore they have no cleavage but instead ________ along irregular surfaces that are commonly curved.
A. chip B. fracture C. luminesce D. flatten E. bend