Many of them are active, the most famous such boundary is the circum-Pacific belt
Passive continental margins are not areas of convergence. There is little volcanic and earthquake activity on passive margins. Active margins are areas of convergence where one plate is descending beneath another. They are associated with volcanic and earthquake activity.
it's flat
water is salty and temperatures differ
Pacific ocean is shrinking due to plate tectonics while Atlantic is increasing in size. Looked up the same question just now for a final tomorrow.
they differ because the gulfs soil is richer than the Atlantic's.
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Yes, there is a difference between Atlantic and Pacific sand dollars, primarily in their species and habitat. Atlantic sand dollars, such as Dendraster excentricus, are found along the eastern coast of North America, while Pacific sand dollars, like Dendraster tenuis, inhabit the western coast. These two types can differ in shape, size, and coloration, reflecting their adaptation to different marine environments. Additionally, their ecological roles and behaviors may vary based on their respective habitats.
Because the oceanic crust is under water in the ocean and a continental crust is land such as the continents
It is way more vast!
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How might demand for low-fare service differ in the Asia Pacific region from the North America and Europe
There are no "types". The oceans are all linked into one lot of water but each contains its own sea-bed topography, water circulations and weather patterns. They are impermanent, over many millions of years, thanks to Continental Drift, so they do grow or shrink over time.