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.
They are different because the sea has moist airs and so it makes the humidity go up
SCIENCE
Answer:
D: The inner core is liquid and moving.
Explanation:
Well there's is frozen sea weed and there is plankton and hair grass
