which of the following does not belong to the group?
a.protractor
b.atomic clock
c.cesium clock
d.quartz crystal clock
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which of the following does not belong to the group?
a.protractor
b.atomic clock
c.cesium clock
d.quartz crystal clock
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Answer:
D.quartz crystal clock
Step-by-step explanation:
basta yun sagot ko
protactor because all of them is the group of clock but the protactor is not