What is a the main difficulty in storing radioactive waste?
A) The half-life of the material is so long it will take over 10,000 years until it is safe.
B) No one wants to keep the waste in their backyard.
C) The materials give off so much radiation that there are engineering difficulties.
D) Water seepage into the waste could lead to radioactive leachate.
E) all of the above
Question 2
The expected formula between aluminum and oxygen is ________.
A) AlO
B) AlO2
C) Al2O
D) Al2O3