The Earth’s grid system was first suggested by?

What are the vertical lines running across the north-south direction called?

The lines of latitude and longitude are a set of imaginary lines.

There can only be one set of grid coordinates for a particular place.

Hipparchus was the first person to make a good approximation of the size of the Earth by calculating a tentative value for the circumference of the Earth.

Eratosthenes was the first to construct the theory of the Earth’s axis.

The lines of latitude are also called the parallels of latitude since they run parallel to the Equator.

The globe rotates on an axis that is tilted at an angle of ____________ from the plane of the perpendicular axis.

The use of longitudes and latitudes gives a unique ____________ to each place.

The location 15° 43' denotes an angle of 15 degrees and 43 ____________.

To locate any place on the surface of the Earth, we need to know its _____ and _____ from another known place or point.

When a set of horizontal and vertical lines intersect each other to form a criss-cross pattern, it is called a ____________.

The GPS navigation system makes use of the Earth’s Grid System of Latitudes and Longitudes.