A reliable source is one that provides a thorough, well-reasoned theory, argument, discussion, etc. based on strong evidence. Scholarly, peer-reviewed articles or books -written by researchers for students and researchers. Original research, extensive bibliography.
Answer:
artificial trees carry a warning label
Explanation:
Answer:
allow for the movement of goods, services, and people across borders and to eliminate tariffs among member nations
Answer:
Railroads improved the movement of people from one area to the other
Observation balloons gathered information about the enemy and communicated it back to the officers
Explanation:
i took the test.