English, asked by sg2575667, 6 months ago

(i) বেতার তরঙ্গ বায়ুমণ্ডলের যে স্তর থেকে প্রতিফলিত হয়ে ফিরে আসে তা হল -
(a) টপােস্ফিয়ার, (b) মেসােস্ফিয়ার, (c) স্ট্র্যাটোস্ফিয়ার, (d) আয়নােস্ফিয়ার।

Answers

Answered by hasley143

6

Explanation:

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