It’s b because if you’re running at 5 miles per second being a 100kg weight is the fastest
        
                    
             
        
        
        
The formation of new volcanoes and the eruption of some existing ones already. 
        
             
        
        
        
Plans used for work that has to do with construction in or around Earth are called, “Civil Plans.”
Hope this helped!
        
             
        
        
        
Answer:
letter B
none zero digit are significant figures