Aquatic ecosystems can involve flowing or still water, and can be fresh or saline.

What is ground water?

Improved water quality can be achieved by

Select the four categories in the marine ecosystem.

The lotic ecosystem are characterized by rapid flowing water moving in two directions.

______ is segment where flow is turbulent in shallower area of the river.

The shallow area of the river where flow of water is slow with no turbulence

Pool is the segment of the river with high depth.

______ is the low ridge or earthen embankment built along the edges of a stream

The scraping away of the bed and banks by material transported by the river

Gross primary production (GPP)- the amount of light energy that converted to chemical energy by photosynthesis

Choose two (2) limitations of primary production in aquatic environment

Animals absorb sulfate salt by eating the plants, plants and animals are biological material which  means if they die and starts decompose, they also release sulfur to the atmosphere. 

Sulfur reserves are found in the lithosphere which is beneath ground, it is stored in rocks, and in soil. 

Carbon dioxide is constantly released via fossil fuel combustion,

plant respiration, and animal respiration. Global warming is

influenced by the amount of carbon dioxide in our atmosphere.

Gases is constantly released via fossil fuel combustion,

plant respiration, and animal respiration. Global warming is

influenced by the amount of gases in our atmosphere. To what cycle does it refer?

This is the process where all the decomposers turn into ammonia.

 The only cycle which does not pass through the atmosphere 

 The cycle which is dependent on bacteria for nitrogen fixation and denitrification 

When the animals die they release

they release sodium chloride.

Inherent ecotone is _______.