Question

what are the lines of latitudes and longitudes​

Answer 1

Latitude is an angle (defined below) which ranges from 0° at the Equator to 90° (North or South) at the poles. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth.

Answer 2

Longitudes are the lines that stands vertically and Longitudes are the lines that stands horizontally .

You can also understand by Latitudes are sleeping lines and Longitudes are standing lines.