Geologist invented the geologic time scale to keep track of older rocks that have been layered over by newer rocks due to sedimentation that comes from other areas.
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Answer:
B
Explanation:
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Na because its a metal. Metals are the best conductors. S and Ne are nonmetals. and Ge is a metalloid. (Metalloids are semi conductors)
Answer:
it's a
Explanation:
<h3> the atomic mass is the number of protons and neutrons in an element added together</h3>