What happens to pH levels as ammonia is converted to nitrate

Only people in ap world history can can someone give me a question and a statement to present to the class about chapter 15,16,or17

This is a major archaeological site that was once a regional center to the mayan empire in ancient mesoamerica.

In a speech before the american society of newspaper editors (april 16, 1953), president eisenhower stated: "every gun that is made, every warship launched, every rocket fired signifies, in the final sense, a theft from those who hunger and are not fed, those who are cold and not clothed. this world in arms is not spending money alone. it is spending the sweat of its laborers, the genius of its scientists, the hopes of its children. this is not a way of life at all in any true sense. under the cloud of threatening war, it is humanity hanging from a cross of iron." do you agree or disagree?