Physical are like rivers, lakes , oceans and mountains 
And human made /cultural features are like dams, buildings , canals stuff that aren't naturally here
        
             
        
        
        
In 1880, coal powered a steam engine attached to the world's first
electric generator. Thomas Edison's plant in New York City provided the
first electric light to Wall Street financiers and the New York Times.Only a year later, the world's first hydroelectric plant went on-line in Appleton, Wisconsin.By the late 1800s, a new form of fuel was catching on: petroleum.With the low-cost automobile and the spread of electricity, our
society's energy use changed forever. Power plants became larger and
larger, until we had massive coal plants and hydroelectric dams. Power
lines extended hundreds of miles between cities, bringing electricity to
rural areas during the Great Depression.(this is just a brief description)
        
             
        
        
        
If you search the coordinates it leads to a point in the ocean off the east coast of South America, the -3780m implies whatever is there is under the ocean, it would require high tech gear to reach that depth, since the box from mpk's video is said to be from the Mariana's web than that location could be were Atlantis was and or is resting but that's just me connecting the dots and I could very well be off by a Longshot
 
        
                    
             
        
        
        
Answer:
It is accepted by a few scientists. 
Answer btw I am new can be friend
 
        
             
        
        
        
1 on the top one on the bottom