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ପୃଥିବୀର ବାୟୁମଣ୍ଡଳର ସବୁଠାରୁ ବାହ୍ୟ ସ୍ତରକୁ କ'ଣ କୁହାଯାଏ?

Aଟ୍ରପୋସ୍ଫିୟର
Bଷ୍ଟ୍ରାଟୋସ୍ଫିୟର
Cମେସୋସ୍ଫିୟର
Dଏକ୍ସୋସ୍ଫିୟର
Answer & Solution
Correct answer: D. ଏକ୍ସୋସ୍ଫିୟର
ଏକ୍ସୋସ୍ଫିୟର ହେଉଛି ବାୟୁମଣ୍ଡଳର ସର୍ବୋଚ୍ଚ ସ୍ତର ଯାହା ଧୀରେ ଧୀରେ ବାହ୍ୟ ମହାକାଶ ସହିତ ମିଶିଯାଏ।
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