New crust forms AT OCEAN RIDGES. The correct option is D.
Middle ocean ridges are the boundary that occur between tectonic plates and they are the locations where the plates move away from each other. At the edges of the ridges, magma from the underneath mantle erupts, cools and become solidified, thus forming new ocean crust.
Answer:
Kelvin wave
Explanation:
The Kelvin waves are usually defined as one type of planetary waves that are characterized by the presence of large peaks as well as valleys that can eventually lead to the change in the depth of ocean water. These are non-break waves.
This type of wave occurs during the time of occurrence of El Nino, which flows only towards the eastern side covering the equatorial region. These are large waves extending up to thousands of miles.
This wave occurring in the equatorial region normally has two phases, namely the up-welling phase, and the down-welling phase, and this eventually leads to various changes in the surface temperature of the sea as well as in the subsurface region within the eastern part of tropical Pacific ocean.
The further from the trench an earthquake's epicenter is, the deeper it is - assuming the earthquake is related to a plate being subducted.
<u>Explanation:</u>
The depressions that are very long and narrower and that exists on the seafloor refers to the Ocean trench. Theses are found on the deepest parts of the ocean. They encapsulate the regions that are prone of volcanic eruptions and also zones of earthquake.
The subductions that are caused in the plates are the ocean trench. These are formed due to the tectonic activity. These are caused mainly due to the movement of the lithosphere of Earth. The process of subduction that results in the trench formation that causes the lithosphere that has high density to move below the lithosphere of lower density.
