The biggest issues facing travelers on the santa fe trail were difficulties with food and water supplies and the a. cost of tolls at rivers b. danger of extreme weather c. risk of attack by american indians d. danger of ferries across rivers

the following best describes postwar era writers in their works:

many writers,authors,novelists,poets concentrated more on social art and social writing and stayed away from political writings.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.