1. cause of Venezuela declares independence from Spain.

2. cause and effect of Civil War breaks out in 1826.

Answer:Venezuela declared independence from Spain because they imposed high taxes on the citizens of Venezuela and because of lack of self rule.

The cause of Civil War break out in 1826 was because of the election of Abraham Lincoln and slave and non slave states. The effects were seen on the economy and assassination of the president.

Explanation:

No country wants to be ruled by other country and have to pay huge amount of taxes so to stop that Venezuela declared independence from Spain. Since Abraham Lincoln wanted to abolish the slavery system many of the people who were in slave business did not wanted that and it created conflict between people inside the country who wanted slavery and who did not.