During the night when the F2 layer combines with F1 layer it falls to what approximate height? A. 250 km B. 350 km C. 300 km D. 400 km

During the night when the F2 layer combines with F1 layer it falls to what approximate
height?
A. 250 km
B. 350 km
C. 300 km
D. 400 km
by

1 Answer

Answer :

C. 300 km
by

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