The fear of MAD was present with the USA and the Soviet Union. This fear spurred the production of nuclear weapons on both sides in what was called, an "Arms Race". Both powers spent massive amounts of time and money, in a competition to hopefully become the greater threat.
Well I believe that they were already having trouble with paying all the cost and damage from ww1 so they didn't want that on their back eithor
This is a personal question, which means that only you can answer it. However, I can give some examples that might help guide your work.
An example of a primary source that you might encounter in your own life is that of a news article. As this article is likely to be written by a reporter witnessing the events, it can be considered a primary source. On the other hand, an example of a secondary source would be a non-fiction book that talks about a historical event. This is because such a book would give a second-hand account of an event based on historical information.
The correct answer is It forced people to grow cash crops.
One of the main motivations for colonialism was the search for raw materials. As a result, the colonized were forced to grow cash crops which were transported to Europe for processing by industries