Civil Services OPSC OAS Mock Test Series 2025 General Science Biology

ନିମ୍ନଲିଖିତ ମଧ୍ୟରୁ କ୍ୱାଶିଅର୍କୋର ରୋଗର ମୁଖ୍ୟ କାରଣ କଣ?

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ପୁଷ୍ଟିସାର ଅଭାବ
2
ଜଳ ଅଭାବ
3
ପ୍ରଦୂଷିତ ବାୟୁ ଏବଂ ଜଳ
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ଭାଇରାଲ ସଂକ୍ରମଣ
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