Answer:
<h2>
A. Rebellious</h2>
The USA signing the Declaration of Independence (Independence from Great Britain) in 1776 was one of the country's most rebellious acts from Britain.
With this piece of information, you would obviously know that subordinate nor oblivious would fit in the options as those both relate to the terms 'unaware' or 'lower rank'.
You're welcome!,
<h2><em>
Daintysword</em></h2>
<u>B - A theory that stated if Vietnam fell to communism the rest of the region would soon follow.</u>
<u></u>
People were afraid that once Vietnam fell into communism that surrounded places would soon follow. Vietnam would be the first domino to fall and hit the rest of the region causes more communism.
Answer: <em>I think </em><u>Southeast</u>
Explanation: The north american continent is moving southeast
I believe the correct answer to that is Thailand.
Ocean floor subducts under continents because the ocean floor is softer and the crust in here is with lesser density and thickness, while the continents are harder because their crust is thicker and has bigger density. So when they collide, the softer ocean floor is pushed downwards by the harder continental crust.