What are Open Spaces?
Open Spaces are areas where there are little-to-no people.
What are some Open Spaces?
Antarctica, the Ocean, and outer Space.
What percentage of the Earth is open?
71%.
What is the extra border for America?
12 miles from the coast.
What needs to be done for travel between countries?
Specific agreements need to be made.
The United Nations has declared that outer space should ___.
Be demilitarized.
A plane from one country can use the airspace of another country ___.
Only with permission.
The United Nations has designated that Antarctica should be a(n) ___.
International park.