Homogeneous region is a region where the people are similar. The answer to your question will be whichever one mentions people being the same.
The Chinese decided to enter the Korean War on November 25-26, 1950. This was an enormous shock to the American forces, as well as to the United Nations. The United States, and in particular U.S. Gen. Douglas MacArthur, believed that the Chinese would not openly enter the war. When China did provide support to North Korea, the effect was catastrophic on the American forces, leading to a great expansion of the conflict.
its central location in Europe , its proximity to the Mediterranean Sea
The answer is 18, you just have to count the total number of cubes