What was notable about the Velvet Revolution in Czechoslovakia? Select two options. It was provoked by union strikes.
The protest leader initially opposed it.
The protests were largely nonviolent.
It began suddenly with mass protests.
The communist leader resigned peacefully.

The protests were largely nonviolent and the communist leader resigned peacefully.

Here's a video on the matter if you're interested:

The Velvet Revolution and Breakup of Czechoslovakia - History Matters

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.