Latitude and longitude are angles. There is no smallest unit. If you move one inch north of where you are right now, you've changed your latitude about 0.00000023 degree, or about 0.000004 milliradian.
The degree of longitude east of 5 degrees west is 4 degrees west longitude.
No
zero
They sit at the 40 degree East line of longitude.
Latitude and longitude are angles. There is no smallest unit. If you move one inch north of where you are right now, you've changed your latitude about 0.00000023 degree, or about 0.000004 milliradian.
where is 120 degree longitude
The degree of longitude east of 5 degrees west is 4 degrees west longitude.
0o longitude.
No
Latitude: 21 degree north Longitude: 103 degree west
zero
The smallest is 0o0'0'' and the largest is 180o0'0''
"1 degree"... smallest part of a degree is ".1 degree"
They sit at the 40 degree East line of longitude.
meridians?
No, it's the longest latitude.