What are the purpose and tone of the excerpt

How did the spanish prove to be excellent allies in the war? give examples?

Arecent challenge to the european union created by a member state is?

Which of the following policies is an example of a command-and-control policy? a. subsidies to education b. maximum levels of pollution that factories may emit c. tradable pollution permits d. none of the above is an example of a command-and-control policy.