The two type of changes are:
1. Independence
When a certain nation declared its independence, their territory is no longer belong to the country that colonize it. Which means that the national boundary undergone a change in ownership. Before the independence, it belonged to the country that colonize the nation. After the independence it belong to the nation itself.
Example: South American countries declared independence from Spanish Empire
2. State Annexes
During annexation, a certain territory is acquired by another country (could either be done through forces or consensual method). When annexation occurs, the national boundaries of the country that being annexed now belong to the nation that annexed it.
Example: When West Papua was acquired by Indonesia.
Answer:
B. Set up a blockade of Berlin
Explanation:
Soviet Union block the land, railway and other canals that led to West Berlin during the world war II.
Answer:
https://get-trained.org/latest-news/why-engineering-so-male-dominated#:~:text=There%20are%20reasons%20why%20engineering,such%20a%20male%20dominated%20industry.&text=A%20lot%20more%20women%20obtain,balance%20work%20and%20family%20life.
Explanation:
IF YOU READ THE ARTICLE THOROUGHLY U WILL GET THE ANSWERS
Ahahahahaha ahahahahahah hahahahah hahahahahhahah
Answer B, holding elections. All the others are powers given to the national government.