The illustration above shows _____ weatherstripping

a) vinyl bulb
b) interlocking threshold
c) fixed bottom sweep
d) automatic door bottom


a

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__________ is the study of how animals behave in their natural habitats

a. Ecology c. Ethology b. Sociology d. Biology

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Technician A says that crossovers are used to block certain frequencies to allow each type of speaker to perform its job better. Technician B says that a high-pass filter is used to block high-frequency sounds being sent to large woofer speakers, and a low-pass filter blocks low-frequency sounds being sent to tweeters. Who is right?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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In all batteries, electricity is produced by

a. light b. heat c. a chemical reaction d. all of the above

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Refer to the figure. Determine the elevation of point B

Fill in the blank(s) with the appropriate word(s).

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