The answer is B . just think like foot ball players or other characteristics.
The correct answer is option Observations can be made from outside the "system".
The study of the plate tectonics allows the observation of the movement of the plate tectonics. These observation can be study to determine the pattern of the movement from outside the plate tectonics system and the event occurring due to plate tectonics can be predicted.
Well , run off water plays a big part in this.
run off water is usually when water is in a puddle or on the ground and ran off into the sewer.
i hope this helps you a lot
Petrified wood is a rock that i have seen
