konflikto iturri diren mineralak
TRANSCRIPT
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GATAZKA-ITURRI DIREN MINERALAK
Xabier Bartolome eta Joseba Basterra
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SARRERA
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MATERIALAK
Casiterita Wolframita Coltana Urrea
Estainua Tungstenoa Tantalioa
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WOLFRAMITA
● Gaur egungo hainbat gailuetarako.
● Oso erresistentea, temperaturarekiko eta oso gogorra
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CASITERITA
● Estañua sortzeko● Oxidazioari
erresistentzia handia
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URREA
● Bitziak egiteko mugikorretan.
● Korronte txikiak dituzten gailuetan.
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COLTANA
● Mugikorrak egiteko erabiltzen da.
● Gatazka handia sortze du.
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Estainua
● Casiteritaren aleazio bat da.
● Hainbat erabilpen ditu.
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Tantalioa
● Trantsizio-metal bakan, gogor, urdin-gris eta lustreduna da.
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ZERGATIK DIRA KONFLIKTIBOAK?
EMPRESAK
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DODD FRANK LEGEA
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NON PAIRATZEN DIRA ARAZO HONEN ONDORIOAK?
UGANDA BURUNDI
CONGO ANGOLA
SUDAN RUANDA
KONGOKO ERREPUBLIKA
ZAMBIA TANZANIA DEMOKRATIKOA
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KONGOKO EGOERA
%80 Coltan
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NORK LORTZEN DU DIRUA EMENDIK?
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GUDA
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GIZA ESKUBIDEAK
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MUNDURAKO KALTEA
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ONDORIOAK
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Bibliografia
-http://www.pferd.com/es-es/5267_ESN_HTML.htm
-http://www.alboan.org/eu/portal/documentos.asp?id=106
-http://www.lincolnelectric.com/es-mx/company/suppliers/Documents/3-conflicto-minerales-faq.pdf
-http://www.20minutos.es/noticia/2441135/0/telefono-movil/lado-oscuro/polemica-fabricacion/