Thousands indefinitely but not many
They did many things in order to protest. They would go to bars that were only allowing white people, or they would blockade buses and ride in front even though they would have to ride in the back due to segregation. They would occupy streets and go for marches, or go for walks at parts of town that didn't want them and were unfriendly.
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t<em>he UK must import all of it's oil, coal, and natural gas</em>
Hope this helps