How did england first attempt to challenge spanish supremacy in the americas? a.

The then Spanish king Philip II was a strong believer of Catholic faith and he wanted to convert all the protestant English settlers to Catholicism. Under the reign of Queen Elizabeth, though she practiced moderate religious tolerance, Spanish supremacy was a threat to England, sent an explorer John Cabot.

Spanish people formed a strong army called the Spanish squadron and decided to destroy English ships.  

But English fleet under the General John Cabot had plundered the Spanish ships and the armada was destroyed. This made America a safe place for Britain colonists.

A  trade barrier is when a government forces restriction on exchange of goods and services, while a migration barrier prevents and individual from moving from one country to another.

Explanation:

A trade barrier or barriers is refereed to as when a government forces a restriction on the  international free exchange of services or goods.

Trade barriers are categorized as, customs practices, quotas, import licensing, labeling, standards, testing, import policies reflected in tariffs and other import charges, and various types of certification.

Migration barriers can be defined as when a person or prevented or not allowed to move from one  to another country.

National Barriers comprises of  both physical and political factors that have major obstacles to migration.