The health and integrity of rivers and streams depend upon keeping the ___ ___ regime for region ___.

The temperature of rivers closely tracks ___ temperature but does not reach the extremes of ___ habitats.

Depth dimension of a river/stream consists of water ___, water ___, and ___ zone.

Width dimension of a river/Stream consists of ___ and ___ channels.

Length dimension of a river/stream consists of ___, ___, ___, and ___.

Rivers and streams vary along ___ spatial dimensions. Name the dimensions.

Name three of the major rivers (there are 19).

Lake color is influenced by many factors but especially by lake ___ and ___ activity.

In the metalimnion or thermocline, the temperature of the water changes substantially. How substantial?

The open part of the lake is known as the ___ ___.

The shallowest waters along the lakeshore, where rooted aquatic plants may grow, is called the ___ ___.

What are the three layers of a stratified lake named?

Microscopic animals that swim or drift near the surface of aquatic environments are known as ...

What is the word for the movement of deep, cold, and nutrient-rich water to the surface?

Coral reefs are generally one of three types: ___ reefs, ___ reefs, and ___.

___ are extremely dynamic physically, chemically, and biologically.

The amount of salt dissolved in water, called _____, varies with latitude and among the seas that fringe the oceans.

A large quantity of water is tied up in ice. Would the melting of the ice flood the coastal cities?

Approximately 80% of the solar energy striking bodies of water is absorbed in the first ___m.

Moving water, as in a stream or river, is ___.

Still water, as in a pond or lake, is ___.

Aquatic biomes are classified first by whether they are ___ or ___, a chemical property.

Life originated in ___ but from our perspective as terrestrial organisms, the ___ realm remains an alien environment.