I am pretty sure that the answer is A.
Answer:
It was the location of the Yalu River boundary between North Korea and China. It served as the boundary between North Korea and South Korea. It marked the first site of North Korean aggression.Hope this helps.☺️
Many autotrophs make food through the process of photosynthesis, in which light energy from the sun is changed to chemical energy that is stored in glucose. All organisms use cellular respiration to break down glucose, release its energy, and make ATP. 1.
The Preamble is the first to the constitution.