Stem cells because they are compatible of dividing and renewing themselves after long periods
<span>C. metric ruler since millimeters are metric</span>
Answer: the half life of the material is four years
They drill holes and bring up samples of rock and study how seismic wave move through the earth.
Hey, the right answer is <u>(C) Condensation And Evaporation.</u>
<u>Hope this helped out.</u>