In what ways did the Spanish influence ranching in Texas?

Why are primary sources important when studying historical events

The date a source was created is considered part of its historical context intended audience purpose point of view

One drawback of voluntary trade is that it a.requires two groups to use a common language b.can make one group dependent upon another for necessary goods c.doesn't occur unless there is a shortage of goods for at least one group d.forces groups to rely on themselves to produce all the goods they need