3. Plants use a process called photosynthesis to survive. What evidence
proves this process is a chemical change?
A. They turn green and change shape
B. They get taller and change size
C. Water is needed
D. Glucose is created in the chloroplasts

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.