Pacific
Ocean
Image courtesy of NASA/JPL
What most likely causes the current to behave as shown in the image?
A. When the deep water is cooled, it loses energy and becomes denser
B. When the water is heated, it becomes less dense and rises
C. When the cold water evaporates, less dense water rises to take its place.
D. When the surface water is heated by the Sun, it becomes denser
Answer: When the water is heated, it becomes less dense and rises.
Explanation: One factor that causes ocean currents is the varying temperature of the ocean water. Cold water is denser than warm water, so it stays below the warm water.
In the Pacific Ocean, some of the cold water at the bottom of the ocean mixes with the warm water above it. As a result, this water is warmed. When the water is heated, it becomes less dense and rises.
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The ocean current in the Pacific Ocean is caused by the process of convection, in which surface water heated by the sun rises due to lesser density, and cooler, denser deep water sinks, creating a cycle.
The ocean current behavior illustrated in the image is most likely caused by the phenomenon of thermal convection, which is associated with temperature differences in the water. When the surface water is heated by the sun, it gets warmer and less dense (B), and therefore rises. Conversely, the deep water is cooler and, because cooler water is denser (A), it sinks. This process creates a cycle: heated surface water moving upward gets replaced by the cooler, denser deep water moving downward, generating an ocean current.
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B) the place where two oceanic plated collide on the ocean floor, the deepest place in the ocean .
C) the process by which a plate moves sideways and downward into the mantle beneath a neighboring plate
D) when rock layers can no longer be bent and begin to break and move
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please explain
Terrane is an added piece of continental crust added after two plates carrying continental crust collide. The right answer is A.
Terrane refers to an added piece of continental crust that becomes attached to a larger continental mass after two tectonic plates carrying continental crust collide. When two such plates converge, the leading edge of the one carrying the terrane may be scraped off and added onto the edge of the other plate, effectively "stitching" it to the continent.
Terranes often have distinct geologic histories and may contain rocks and fossils different from the surrounding continental crust, providing important clues about past tectonic events and plate movements. This process of terrane accretion is significant in understanding the complex geological history of regions where such collisions have occurred.
The correct answer is option A.
Know more about Terrane here
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