PLS HELP Which of the following would be the most important to a new civilization?

A plentiful supply of rock, iron, and clay for making pottery and tools
Surroundings area filled with animals for hunting
Barriers (mountains, deserts, a sea, etc.) for protection
A predictable supply of water

Below is a digram of a hypothetical bill. which of the following must be the missing legislative step in the diagram?

Why have the aztec ruins in mexico city not been dug up?

Which statement best describes evidence of a mulitcultural mix in east africa? a. because of what he learned during his pilgrimage to mecca, mansa musa was able to build a center of islamic scholarship. b. the traders of ghana brought back with them slaves from the mediterranean who taught the ghana rulers about christianity. c. clans were made up of lineages that were descendants of multiple ancestors from different regions of africa. d. swahili became a language made up of words spoken by traders along the coast of the indian ocean.