1:the malanesian islands ,which include the papua New guinea
Which is closer to australia
The degree of vertex D is if it is an indegree or outdegree, it is 1 degree in vertex D.
Answer:
Big cities, convenience.
Explanation:
In the most densely populated areas of Europe and Russia, there are cities which means that things will be close to people. Cities provide convenient for people, they are more populated.
