before u a lab u should tie loose hair back, and know the locations of all exits
Answer:
The Skeleton
Explanation:
because the softer tissues and skin usually do not last long enough to become fossilized
Answer:
When the natural resources Exhausted
Answer:
Together,the number of protons and the number of neutrons determine an elements isotopes have slightly different mass numbers, the atomic mass is calculated by obtaining the mean of the mass numbers for its isotopes.
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