Teaching Bihar B.Ed CET Mock Test Series 2025 General Knowledge Ecology and Environment Environmental pollution

ଭାରତୀୟମାନଙ୍କର ନିମ୍ନସ୍ତର ସ୍ୱାସ୍ଥ୍ୟର ମୁଖ୍ୟ କାରଣ କଣ?

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ବାୟୁ ପ୍ରଦୂଷଣ
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ଜଳ ପ୍ରଦୂଷଣ
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ଶବ୍ଦ ପ୍ରଦୂଷଣ
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ମୃତ୍ତିକା ପ୍ରଦୂଷଣ
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