C cause they won’t be identical to the parent since they are reproducing sexually
The element starts off as 100%. half of 100% is 50% and half of 50% is 25%. the element has emitted 2 times the half life which is 10,000 x 2 = 20,000
the fossil bone is 20,000 years old
Cm3 unless its luiquid right
? hope this helps
