1. cause of venezuela declares independence from spain.
2. cause and effect of civil war breaks out in 1826.

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:

congress failed to remove johnson. but it did succeed in getting control of efforts to re-build the south following america's civil war. radical republicans wanted to punish the south for starting the war. they also wanted to be sure new governments in the southern states would support the republican party.