For more such informative content, go to https://scifitechify.blogspot.com/. This video will give you the brief expanation as to why these colourful and wonderful auroras are formed in northern places. NEXT POST ON: WHAT IS A MIRAGE ?

1. WHY ARE AURORAS FORMED ?

2. MAGNETIC FIELD LINES OF EARTH
The Earth has a strong magnetic
field and acts as a magnet. Earth’s
geographical north pole is
magnetic south pole and its
geographical south pole is
magnetic north pole. The magnetic
field lines flow from magnetic
north to south pole (ie from
geographical south to north pole).

3. THE SUN PRODUCES STRONG SOLAR WINDS

4. FORMATION OF AURORAS
The earth’s magnetic field shields
the earth from the strong solar
winds coming from the sun. Most of
these winds are deflected by the
field lines while some travel along
the field lines and react with
nitrogen,oxygen etc in the
atmosphere to produce colourful
gases. This takes place at the poles.

5. WHAT IS A MIRAGE ?
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