question_answer

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