4. which of the following demonstrates how the american government provides for the common
defense of the nation? use the preamble to the constitution to answer the question.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

food chain i would say only because there is competition on getting food and survival

c. archbishop desmond tutu promoted the acknowledgement of the rights of black africans and expose human rights abuses.

d. leader haile selassie modernized african society through the institution of progressive social, economic, and educational reforms.