A layer in the Earth's atmosphere called ionosphere facilities radio communication. Why? 1. The presence of ozone causes the reflection of radio waves to earth. 2. Radio waves have a very long wavelength. Which of the statements given above is/are correct?

A layer in the Earth's atmosphere called ionosphere facilities radio c

1.	A layer in the Earth's atmosphere called ionosphere facilities radio communication. Why? 1. The presence of ozone causes the reflection of radio waves to earth. 2. Radio waves have a very long wavelength. Which of the statements given above is/are correct?
A.	1 only
B.	2 only
C.	Both 1 and 2
D.	Neither 1 nor 2
Answer» E.