Living things that affect the ecosystem

Examples: rocks, soil, water, sunlight, salinity, humidity, pH

The measure of salt dissolved in water

Examples: Swamps, marshes, sloughs, bogs, fens

Partially enclosed body of water where fresh water meets salt water

A mix of fresh water and salt water

An area of land saturated with water

Measures the total amount of suspended solids

Measures the amount of oxygen in the water

Measure how acidic or basic the water is

Water close to the source (start) of the river

Water close to the mouth of the river

How does water flow in a river?

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