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File:Lead dioxide.jpg
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پرونده:Lead dioxide.jpg
A sample of
lead
(IV) oxide (PbO2). Picture taken August 2005 by User:Walkerma. English
پرونده:Pollution of nitrogen oxides and ozone threatens pollinators (Copernicus).jpg
English This display shows the average value of tropospheric nitrogen
dioxide
(NO2) measured between 1 and 31 December 2021 in the Po Valley (Northern
پرونده:High School Earth Science 1-13.pdf
jpg
. GNU-FDL. (17) http://en.wikipedia.org/wiki/File:Waves_in_pacifica_1.
jpg
. GNU-FDL. (18) http://en.wikipedia.org/wiki/Image:Rainbow_Basin.
jpg
. GNU-FDL
پرونده:CK12 Earth Science.pdf
http://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Brujula.
jpg
/800px-Brujula.
jpg
, , License: GNU Free Documentation) Figure 2: A compass rose
پرونده:Lead dioxide and Manganese(II) sulfate.jpg
Description
Lead
dioxide
and Manganese(II) sulfate.
jpg
Lead
dioxide
and manganese(II) sulfate Date 23 August 2009 Source Own work Author Choij (talk)