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Why do waters in the deep ocean tend to have higher concentrations of nutrients compared to the surface waters?

_____________ is the marked change in ocean water density with depth.

What direction do ocean gyres flow in the Northern Hemisphere?

•A threat assessment examines how these threats could affect the particular asset, organization, or system you are looking at, in context. With that, a threat assessment could be done on one of several levels, either simultaneously or separately.

Threat modeling involves looking at every possible threat agent, action or event, attack vector, and vulnerability for a given system, asset, or process, and then modeling or simulating how it could progress and the damage that could occur.

What is the underlying cause of coastal upwelling?

What type of organism generates its own internal body heat? Select the best answer. 

What happens to the density of water as it becomes colder?

All else remaining the same, what will happen to the pH of water if more carbon dioxide dissolves in the water?

Decreased salinity and density in the surface waters of the North Atlantic could shut down ________.