(A) Troposphere (X)
(B) Ionosphere ()
(C) Mesosphere (X)
(D) Stratosphere (X)
(E) None of these (X)
Answers: Ionosphere
(A) Troposphere (X)
(B) Ionosphere ()
(C) Mesosphere (X)
(D) Stratosphere (X)
(E) None of these (X)
Answers: Ionosphere
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