Well,the Marianas trench 10,994 meters
The first step of the scientific method is to pose a question or problem to be investigated.
Absolutely true! Western boundary currents are deflected by eastern coast lines of the continents.
The answer is Dike.
In Geology, Dike is a sheet of rock formed in a fracture in a pre-existing rock body. Magmatic dikes are formed when magma intrudes into a crack then crystallize. It is an igneous body with a very high aspect ratio.