Question

for the following question, choose the best response based on the command word used: describe the oxygen minimum layer. the oxygen minimum layer is the portion of the water column that has the lowest levels of dissolved oxygen. the oxygen minimum layer has reduced levels of oxygen due to having no photosynthesis occurring there, but significant levels of respiration occurring. the oxygen minimum layer occurs around 500 m, but can vary in different regions.

Explanation:

The oxygen - minimum layer is the part of the water column with the lowest dissolved oxygen levels. This is because there is no photosynthesis taking place in this layer, while significant respiration occurs. It typically occurs around 500 m but can vary by region. All of these statements together provide a comprehensive description.

Answer:

All of the above statements contribute to a description of the oxygen minimum layer.