sysstem 1 account 1611 e main chromium mineral is chromite
DESCRIPTION
is found throughout the environment in three major oxidation states which are Cr (0), Cr (III) and Cr (VI). The most stable form is Cr (III), occurs naturally, while Cr (VI) and Cr (0) are generally introduced into the environment by various industrial processes and anthropogenic activities. Chromium does not occur freely in nature. The main chromium mineral is chromite (FeOCr2O3) in which it is the only ore containing a significant amount of chromium. However, the ore has not been found in the pure form; its highest grade contains about 55% chromic oxide (I). As was mentioned earlier, chromium compounds can be found in waters at trace amounts. The element and its compounds can be discharged in surface water through various industrial processes. It is applied fTRANSCRIPT
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Function Camera Eye
Protection Focus
UV filter and lens
Cornea and lens
Light Diaphragm Pupil/IrisImage Sensor Retina
L E T ' S C O M PA R E O U R E Y E S W I T H O U R C A M E R A
L E T ' S C O M PA R E O U R E Y E S W I T H O U R C A M E R A
lenses
mirror
Function Camera Eye
Protection Focus
UV filter and lens
Cornea and lens
Light Diaphragm Pupil/IrisImage Sensor Retina
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The rule of thirds is a guideline which applies to the process of composing visual images such as designs, films, paintings, and photographs. The guideline proposes that an image should be imagined as divided into nine equal parts by two equally spaced horizontal lines and two equally spaced vertical lines, and that important compositional elements should be placed along these lines or their intersections. Proponents of the technique claim that aligning a subject with these points creates more tension, energy and interest in the composition than simply centring the subject would.
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