Answer:
The answer is C.
Explanation:
It is tangible boundaries (C) because these are natural/physical limitations. The other answers would mean that they were marked or created by humans.
The Apollo-Soyuz Test Project was a joint United States-U.S.S.R. venture to live and work together on a space platform in orbit.
Answer:
2403
Explanation:
the attack killed about 2403 Americans during the atack on Pearl harbor.
I believe if not then im wrong but there goal was to make fire hand made
