saudi arabia
That touches the E SE part of Australia.
It is in Australia.
Any point whose longitude is "120 degrees E" is 120 degrees to the east of the Prime Meridian.
That point is one of a huge number of different locations in Australia. That particular one is in the southwestern part of the country, about 285 miles northeast of Perth.
saudi arabia
The geographic coordinates of 0°N, 120°E correspond to the location in the country of Indonesia.
30 N 120 E ( N 30 0' 3. 744 , E 58' 58 . 6848''' ) displayed on a map
That touches the E SE part of Australia.
It is in Australia.
None. That's in the middle of the Mediterranean Sea.
Any point whose longitude is "120 degrees E" is 120 degrees to the east of the Prime Meridian.
That point is one of a huge number of different locations in Australia. That particular one is in the southwestern part of the country, about 285 miles northeast of Perth.
25 N 30 E is Qesm Al Wahat Ad Dakhlah New Valley Governorate. The country is Egypt
50 N, 30 E is a location in Ukraine just outside of the capitol city of Kyiv.
China
It's not possible for a whole country to be located all at the same latitude/longitude. That point, along with a huge number of others at different coordinates, is in Zambia.