What is the purpose of the scientific method? A. To use an experiment to test a scientific theory

B. To make a guess in order to prove a hypothesis

C. To remove any source of bias in an experiment

D. To provide a reliable answer to a specific question

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.