Oceans Multiple Choice Test

_ is a measure of the dissolved salts in water.

___occurs when warm surface water is blown away by winds to be replaced by cold nutrient rich water from below.

The ocean zone near shore that is affected by high and low tides.

The ocean zone that extends to the end of the continetal shelf where sunlight penetrates to the bottom.

The open ocean that is divided into layers based on how much light reaches each layer.

The ocean floor.

Why does warm ocean water stay at the surface?

All of the following are reasons upwelling is important except ___.

Deep ocean ecosystem that spews hot fluids into the ocean and supports a wide variety of organisms.

The process used by producers that use of chemicals to make sugar is called ____.

Organsims that drift with the currents and are usually found near the surface.

Oranganism that swim freely in the ocean.

Organisms that live attached or on the ocean floor.

A ___ is a place where freash water from rivers meets salt water from the ocean.

Estuaries have brackish water. What does brackish mean?

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