When geologists want to study an active earthquake fault, they often rely on a trenching study. ... They brace the walls, if needed, to prevent cave-ins, then they climb down into the trench and carefully map its walls, looking for signs of past earthquakes and ground movement.
        
             
        
        
        
The melting sea ice goes directly into the sea, causing sea level to increase
        
             
        
        
        
Explanation:
There are now many small soay sheep in Scotland because the winters are not as   brutally cold as they use to be. The climate in Scotland has been warming therefore the  sheeps of small stature can easily survive now in Scotland, which was not possible in earlier years.
 
        
             
        
        
        
what am i trying to figure out
 
        
             
        
        
        
A planet in motion remains in a stable orbit around the sun mainly because of two things: the nature of the gravitational force and because virtually no other forces act on the planet. The momentum of a planet changes during its orbit but not, in general, its inertia -- which relates solely to its mass.