Answer:
They can use radioactive dating
Explanation:
To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
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Comparisons about how bacteria and viruses affect the body
Answer:
Cercopithecine Herpes virus-1 (B-virus)
Explanation:
Answer:
Second option
Explanation:
Gravity is the force that pulls objects toward Earth's center
