Igneous rock is formed through the cooling and solidification of magma or lava.
Answer:
Deep-sea trenches generally lie seaward of and parallel to adjacent island arcs or mountain ranges of the continental margins. They are closely associated with and found in subduction zones—that is, locations where a lithospheric plate bearing oceanic crust slides down into the upper mantle under the force of gravity.
Explanation:
"The result is a topographic depression where the oceanic plate comes in contact with the overriding plate, which may be either oceanic or continental. If the overriding plate is oceanic, an island arc develops. The trench forms an arc in plan view, and islands with explosive volcanoes develop on the overriding plate. If the overriding plate is continental, a marginal trench forms where the topographic depression appears to follow the outline of the continental margin. Explosive volcanoes are found there too"
West Wind Drift is ocean current that only continues in circle
around the circumference of the Earth, it brings the most volume of water of
all currents. It go around the earth, crossing the Atlantic, Indian, and
Pacific oceans; the cold Bengal, West Australian, and Peru currents branch off
from it in the oceans.