The answer is a political system
<span>the spiral arms of the milky way was made of: D. younger stars and gaseous nebulae
The spiral arms of the mily way was organized into four spiral arms, and since it was made of younger stars and gaseous nebulae, Spiral arms typically contain a higher density of interstellar gas and dust than the Galactic average as well as a greater concentration of star formation</span>
<u>Answer:</u>
<u>1. North Korea</u>
<u>2. China and Mongolia</u>
Explanation:
1. Going by the meaning of the term '<em>northernmost'</em>, which is a location that is situated furthest to the north, we can conclude that North Korea is the country that shares a border with the northernmost part of China.
2. China and Mongolia are among the several countries found between the 105° E and 135° E lines of longitude.
North Atlantic Ocean, it's in a cluster of islands located off the east coast of the United States.