What does the executive branch domake laws interpret laws carry out laws revise laws?

What were four reasons for the decline of spain as a world power

Select the five weaknesses of the articles of confederation. congress could not declare war or establish an army. congress could not levy taxes. congress could not control trade. not all the states were represented in congress. no national court system. no executive to enforce the laws. congress could not negotiate with foreign governments. the national government could not borrow money. nine of the states had to agree to pass a law.

What kind of contact did christopher columbus and native americans initially have?