Letter D would be likely it
One of the negative impacts of eutrophication and increased algal growth is a Loss of oxygen known as anoxia
Answer: "natural selection" .
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Intermediate magma is also known as andesitic magmas and these are created when an oceanic plate subducts beneath a continental plate. The magma is generated in the wedge of mantle rock beneath the crust. The Cascade Mountain Range is formed due to the subduction of the Juan de Fuca Plate beneath the North American Plate.
Usually microorganisms help keep the nutrients in the soil cycling allowing for nutrients to be distributed all over. But they do what they can unless the disease is damaging to the soil itself therefore damaging the microorganisms working to keep the plant functioning.
