<span>Complex drainage systems to keep structures from flooding this works</span>
<span>The abolitionists main goal was to "abolish slavery in the United States". This movement had existed in some form since the beginning of the US, but really gained momentum when the nation started to expand in the 1800s. </span>
B: Petroleum is the answer it makes up about 95% of the exports of Venezuela
Answer:
The answer is B
Explanation:
By use of process of elimination.