Question

ii) What is a geographic meridian. How does
the declination vary with latitude? Where
is it minimum?​

Answer 1

Half of the Earth surface’s imaginary great circle is called the Geographic meridian, which is the longitude line.

Explanation:

• This is terminated by the South Pole, North Pole and the equal longitude’s connecting points.
• This is measured as east or west in angular degrees of the Prime Meridian.  
• With both the longitude and latitude, the magnetic declination varies. This is due to the reason that the magnetic poles are not equivalent with true South and North.
• Thus, the angle between the true North and Magnetic North will differ expect the circle going via both.  

To learn more:

1. A dip circle is placed in geographic meridian at a place where dip and declination are known to be respectively 30°and 60°.What dip will be given by dip circle

https://brainly.in/question/8177092

2. What do u mean by geographic meridian and magnetic meridian: https://brainly.in/question/12117736