B: wwII both at Pearl Harbor and aerial balloons
A letter written during the time a historical event occurred is a useful primary source document.
Primary source documents are the most original way to understand Historical events.
If it was the letter written for discussing analysing the same historical event after the occurrence of the event, it would have been considered as a secondary source.
Answer:
C. The al-Qaeda organization had an active global network.
Explanation:
Answer:
In 1501, shortly after Christopher Columbus discovered America, Spain and Portugal began shipping African slaves to South America to work on their plantations. In the 1600s, English colonists in Virginia began buying Africans to help grow tobacco.
Explanation:
Hope this helped!! ;)
Answer:
We can conclude that the co2 concentration will go up in 2015 and in late 2016 it will start to fall.
Explanation:
By looking at graphed points before 2015 we can see that the co2 concentrations rise even higher about every two years, but then start to go down.