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When do upwellings occur?
Upwellings occur when winds push surface water away from the coast, allowing deeper, nutrient-rich waters to rise and replace the displaced water. This typically happens along coastlines, where surface water is moved by winds or ocean currents. Upwellings are important for providing nutrients for marine life and can occur seasonally or due to specific oceanographic conditions.
Upwellings are special ocean currents that are?
vertical
What cause the abundance of availible food in the fundy bay?
Upwellings
Phytoplankton feed on the nutrients brought up by this type of deep cold water current?
Upwellings
Do plate boundaries cause volcanoes?
Not per-Se, but plates pulling apart AND plates being overridden do cause magma upwellings.
Hotspot volcanoes occur along subduction zones?
False. Hotspot volcanoes form above mantle plumes, which are localized upwellings of hot mantle material. Subduction zone volcanoes form due to the subduction of one tectonic plate beneath another, resulting in magma generation due to the melting of the subducted plate.
What are upwellings and down welling how do they form and how do they affect fisheries?
Upwellings are oceanic processes where deeper, nutrient-rich waters rise to the surface, often occurring along coastlines where winds push surface water away. This influx of nutrients supports high productivity, benefiting fisheries by increasing fish populations. Conversely, downwellings occur when surface waters, often warmer and less nutrient-rich, sink, leading to reduced biological productivity in those areas. Both processes significantly influence the distribution and abundance of marine life, affecting fishing yields and ecosystem health.
How would upwellings contribute to the fishing industry of various nations?
Upwellings in the oceans are associated with the bringing of very nutrient-rich waters to the surface. Those nutrients are the base of a food chain that includes fish. Areas of upwelling are usually extremely prolific fisheries.
Plumes of the molten rock originating deep within the mantle are known as?
Mantle plumes. These are hot upwellings of magma from the Earth's mantle that can cause volcanic activity on the surface, such as hotspot volcanoes like those in Hawaii.
Where do blizzard's occur?
they can occur any where it has to occur with precipitation
How can you occur?
When and where did the dustbowl occur
What is occur mean?
of Occur
