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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The average rate of recession can be calculated by dividing the total distance receded by the number of years in each time span. The rate increased or decreased depending on these calculations.
To answer this question, we first need to know exactly how far the Saint Anthony Falls receded between the specified times. However, if we assume those distances are provided (in the form of the gaps on the map, expressed in feet), the student can calculate the rate of recession by dividing the total distance receded by the total number of years for each time span. For example, if the falls receded 86 feet between 1680 and 1766, that's 86 feet/86 years = 1 feet/year. If it receded 120 feet between 1856 and 1876, that's 120 feet/20 years = 6 feet/year. In this hypothetical example, the rate increased from the first time span to the next.
Again, it's crucial to know the exact distances receded (the lengths of the gaps on your map) to compute the accurate rates of recession.
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Answer:
The time span between 1680 and 1766 (lines 1 and 2) is 86 years: 1766 − 1680 = 86 years. During this time, the falls receded an average of 5.8 feet per year: 500 feet ÷ 86 years ≈ 5.8 feet per year.
The time span between 1856 and 1876 (lines 3 and 4) is 20 years: 1876 − 1856 = 20 years. During this time, the falls receded an average of 25 feet per year: 500 feet ÷ 20 years = 25 feet per year.
Explanation:
the answer is correct because i took the test
Answer:
They both are natural disaster
They both are probable to occur in the areas/places where two tectonic plates meet
Explanation:
Answer:
Tropical and subtropical coniferous forests
Indus River Delta-Arabian Sea mangroves Mangrove
Indus Valley desert Deserts and xeric shrublands
Karakoram-West Tibetan Plateau alpine steppe Montane grasslands and shrublands
Explanation:
Answer:
Tropical and subtropical coniferous forests
Mangrove
Deserts and xeric shrublands
Montane grasslands and shrublands
Explanation:
There are WAYYYYYY more though