Why do scientists think early humans first ventured africa

Which communities brought about the rise of the first politician? a.anthropological b.neolithic c.hominids d.geologist

Which of the following statements is true about water access in the middle east? a. access to coastal waters is not important to people.b. most countries depend on outside resources for water.c. water is available in large supplies in all countries.d. all countries have sources of renewable freshwater.

"if i have seen farther than others," said newton, "it is because i have stood on the shoulders of giants." who were the giants to whom newton was referring? could this be said of any scientific accomplishment? explain.