The process of takes place when the Earth's surface is worn away by the action of physical processes such as wind and water. A.
erosion
B.
plate tectonics
C.
climate
D.
weather

The study of where things are 

Answer the collision of tectonic plates;

Answerprediction;

Your answer is d. silli hope this ! : ) i left an explanation down below if you need it: a sill forms when hot magma squeezes between layers of rock to form a hardened sheet of rock. a sill is basically a tabular sheet intrusion between old layers of sedimentary rock, volcanic beds, or in the direction of foliation inherent in metamorphic rock. the word sill means a concordant intrusive sheet.