Can some answer these 2 questions please The Stamp Act was the result of which event?

This was an order issued during the civil war by president lincoln ending slavery in the confederate states

How would high tariffs hurt america? a. fewer immigrants would be able to move to america b. sales of american products to other countries would go down c. americans would sell more goods to other countries d. goods imported from other countries would cost less

What made it difficult for mexican americans to win court cases against anglo americans who laid claim to their land