Answer: Okay!
Explanation: Well then the third thing could be dead plant? You already have 2 other things
The half-life of sodium-24 is equal 14,959 hours.
Answer:Earth science or geoscience includes all fields of natural science related to planet Earth. This is a branch of science dealing with the physical and chemical constitution of Earth and its atmosphere. Earth science can be considered to be a branch of planetary science, but with a much older history.
Explanation: hope it helps
<span>(1.35 x 2 x 10^-10 m/atom) = 2.0 x 10^7 atoms</span>
