Correct Answer - Option 3 : USA and Canada
The correct answer is USA and Canada.
- 49th parallel is a boundary between the USA and Canada.
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49th parallel:
- The 49th parallel lies in the Northern Hemisphere.
- It is a circle of latitude that is 49° north of Earth's equator.
- It was demarcated after the Anglo-American Convention of 1818 and the Oregon Treaty of 1846.
- The line also forms the international border between the northern USA and Canada.
Some of the International boundaries are:
| Name |
Demarcating Nations |
| 17th Parallel |
South Vietnam and North Vietnam |
| 20th Parallel |
Libya and Sudan |
| 25th Parallel |
Mauritania and Mali |
| 31st Parallel |
Iran and Iraq |
| 38th Parallel |
South Korea and North Korea |
| Durand Line |
Pakistan and Afghanistan |
| Hindenburg Line |
Poland and Germany |
| McMahon Line |
China and India |
| Maginot Line |
Germany and France |
| Mannerheim Line |
Russia and Finland |
| Radcliffe Line |
India and Pakistan |
| Siegfried Line |
France and Germany |
| Blue Line |
Lebanon and Israel |
