In which way was the distinction "serf" different from that of "slave"?

This description of the "firm league of friendship" of states is a quotation from the

Central american countries are important agricultural producers. each year, the united states imports about five billion dollars’ worth of a. bananas b. cacao c. mangoes d. coffee

The government of country a has determined there is a coal shortage based on mining reports.as a result of these data, the government decreases coal exports to other nations. access to information country a