The steady or initial phase of the magnetic storms is
A.Preceded by storm sudden commencement
B.Magnetic storm at middle and low altitudes
C.A sharp increase of the field
D.None of the above
Answer:A
The steady or initial phase of the magnetic storms is
A.Preceded by storm sudden commencement B.Magnetic storm at middle and low altitudes C.A sharp increase of the field D.None of the above