I if a radioactive material has a 10 year half-life, how much of a 100 g sample will be left after 20 years? A. 50g
B. 6.25g
C. 12.50g
D 25g

I believe the answer to your question is C) 12.50g.

Since it has a half life of 10 years and the question asks for 30 years all you need to do is divide 100 in half 3 times.

Hope this helps!! :))

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.