Parts of Earth and its atmosphere where there is life

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

What is the polyatamic ion of thiosulfate

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.