Answer:
In the experiment it includes several separate tests and errors that can be easily occurring. One of the errors is the potato cores were not necessarily all the same weight to even begin with. However, another source of error is the cores were not exactly completley covered by the solution, which is due to the larger beaker.
Answer:
A sound wave with 15,000 Hz
Explanation:
Humans can averagely hear up too 20,000 Hz. So around 15,000 would make most sense.
Answer:its bus and help me
Explanation:and pls dont report
I think it's D. It shields life forms on the surface from radiation?