That is the definition of a closed set.
Only if fraud is involved.
Prove to whom? You can't "prove" a negative.
A lot of countries have boundary with Bangladesh. Only two countries have boundary with Bangladesh. They are India and Myanmar.
Carbon monoxide (CO). This isn't only produced by a vehicle running in a closed garage; it can happen in many situations and because the gas is undetectable by those immediately exposed to it, it can prove a major health problem.
According to scientific studies, the least dangerous plate boundary is the divergent boundary. Only moderate earthquakes occur in this type of boundary compared to convergent and transform plate boundaries.
Fracture Zones
show it. prove it. only you know the answer to how to do it.
plate boundry has four different parts. # conservative boundary. # constructive boundary. # destructive boundary. # collision boundary.
closed shop
No, the roller coaster is not the only example of a closed energy system.
All three type of Earthquakes (Shallow-seated, Medium-seated and Deep-seated) occur only at the Convergent plate boundary. At divergent plate boundary we find mostly Shallow-seated Earthquakes only.
If the circuit is closed the electric current will be closed as well.