The data table shows the sound levels of common noise Which profession has the greatest risk of sound damage
to the ear?
sources.
Noise Source
woodworker
Sound Level
in Decibels
140
O librarian
130
O teacher
D truck driver
120
110
100
90
80
Jet engine (at 25 meters)
Jet aircraft (at 100 m)
Rock and roll concert
Pneumatic chipper
Woodworking machines
Chainsaw
Heavy truck traffic
Business office
Conversational speech
Library
Bedroom
Secluded woods
Whisper
70
60
50
40
30
20

Design an er diagram for keeping track of information about votes taken in the u. s. house of representatives during the current two-year congressional session. the database needs to keep track of each u. s. state's name (e. g., texas', new york', california') and include the region of the state (whose domain is {northeast', midwest', southeast', southwest', west'}). each congress person in the house of representatives is described by his or her name, plus the district represented, the start date when the congressperson was first elected, and the political party to which he or she belongs (whose domain is {republican', democrat', 'independent', other'}). the database keeps track of each bill (i. e., proposed law), including the bill name, the date of vote on the bill, whether the bill passed or failed (whose domain is {yes', no'}), and the sponsor (the congressperson(s) who sponsored - that is, proposed - the bill). the database also keeps track of how each congressperson voted on each bill (domain of vote attribute is {yes', no', abstain', absent'}). additional information: