alleryবায়ুমণ্ডলীয় ভরের আনুমানিক কত ভগ্নাংশ ট্রপোস্ফিয়ারে রয়েছে?
A60 শতাংশ
B80 শতাংশ
C40 শতাংশ
D20 শতাংশ
Answer & Solution
Correct answer: B. 80 শতাংশ
ট্রপোস্ফিয়ারে পৃথিবীর বায়ুমণ্ডলের মোট ভরের প্রায় 80 percent রয়েছে।
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