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വാർത്താവിനിമയ കൃത്രിമോപഗ്രഹങ്ങൾ സ്ഥിതിചെയ്യുന്ന അന്തരീക്ഷ മണ്ഡലം ഏത്?

Aസ്ട്രാറ്റോസ്ഫിയർ

Bഅയണോസ്ഫിയർ

Cട്രോപ്പോസ്ഫിയർ

Dമിസോസ്ഫിയർ

Answer:

B. അയണോസ്ഫിയർ


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