The simplest optical microscope<span> is the magnifying glass and is good to about ten times (10X) magnification. The compound </span>microscope<span> has two systems of lenses for greater magnification, 1) the ocular, or eyepiece lens that one looks into and 2) the objective lens, or the lens closest to the object.</span>
Answer: "iris" .
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It is greek for "<span>to close the eyes"</span>
Human activities such as pollution , like trash , or boat oil can effect the waters that house 100 of creature and as for nitrogen cycle things like forest burning and fossil fuel combustion can result in the increased deposition of nitrogen from atmospheric sources
