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Oh my fish kill again! Because of too much garbage fishes do not have enough oxygen yo 8 Wednly have Garbage takes up oxygen while they are decomposing People really need to change ther ways. We need to do Something one Earth let us take care of it. 1. What do fishes, other animals, and all liying things need in order to live? Animal and all living things need olygen to livel oxygen is meeded by all living things to live. 2. What do you think is the reason for the fish kill? 3. What do you think is the reason for the lack of oxygen in the river? Activity 4: false write true if the statement is correct. Replace the underlined
2. what do you think is the reason for the fish kill?/​


Sagot :

Answer:

1.Just like animals and humans living on land, animals that live in water need oxygen to survive. Oxygen from the atmosphere dissolves in river and lake water, and it is this oxygen that fish and other aquatic animals use to breathe.

2.Many, but not all, fish kills in the summer result from low concentrations of dissolved oxygen in the water. Fish, like all other complex life forms, need oxygen to survive. ... Other organisms use oxygen, too, including the algae that grow in the summer and bacteria that degrade organic matter.

3.Low dissolved oxygen (DO) primarily results from excessive algae growth caused by phosphorus. ... As the algae die and decompose, the process consumes dissolved oxygen. This can result in insufficient amounts of dissolved oxygen available for fish and other aquatic life.