A) Statement-1 is false, Statement-2 is true
B) Statement-1 is true, Statement-2 is false
C) Statement-1 is true, Statement-2 is true and Statement-2 is the correct explanation of Statement-1
D) Statement-1 is true, Statement-2 is true and Statement-2 is not the correct explanation of Statement-1
Correct Answer: C
Solution :
Because of variation in composition of ionosphere, the signals are unstable.You need to login to perform this action.
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