What is the angle between the axis of rotation and the magnetic axis of the Earth (in $°$)?

Define geographic meridian and magnetic meridian.

Explain the magnetic field of the Earth and give the order of magnitude of the Earth's magnetic field.

Assertion : In high latitudes,one sees colourful curtains of light hanging down from high altitudes.
Reason : The high-energy charged particles from the sun are deflected to polar regions by the magnetic field of the earth.

What was the early recognition of Earth's magnetic field? State the dynamo effect.

The vertical component of the earth's magnetic field is zero at a place where the angle of dip is.....$^o$