Why is hearing better in an auditorium with grooves in the walls than with flat walls?
What will be an ideal response?
Grooves in the wall reflect sound in many different directions so you hear all parts of the orchestra at the same time. With flat walls, you hear some parts of the orchestra better than other parts and you depend on other reflective surfaces to direct all parts of the orchestral sound to your ears.
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What is the difference between flood currents and ebb currents?
What is the relief from Allegany High School to the highest point along the profile (south of the water gap)?
What will be an ideal response?
"B" type climates generally occur
A. beneath sinking air. B. along the equator. C. along the Gulf Stream. D. near the poles.
Once oil is formed it must accumulate in concentrations that can be drilled and pumped, these concentrations are called ________.
A. concentrations B. traps C. beds D. reserves E. accumulations