The layer in the Earth's atmosphere called the ionosphere facilitates – McqOptions

MCQOPTIONS

1.	The layer in the Earth's atmosphere called the ionosphere facilitates radio communication. Why ? 1. The presence of ozone reflects the radio waves towards the earth. 2. The wavelength of radio waves is very long. Which of the above statement(s) is/are correct?
A.	only 1
B.	only 2
C.	1 and 2
D.	neither 1 nor 2
Answer» C. 1 and 2

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