Answer:
sound loudness is measured in decibels, A. True
There are about 7 or 8 primary tectonic plates. The lithosphere is made of about a dozen plates. The plates fit together like the pieces of a jigsaw puzzle. However, the plates can move. This causes earthquakes, volcanoes, and mountains to form.
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Protons, neutron, and elecrons
Which of these measurements is expressed as three significant figures?
C. 4.20 g
Protons and neutrons.
Note: They probably are ABOUT the same mass. Don't think they are exactly the same.
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