Which natural wonders are volcanic, or formed by volcanic activity? Choose two correct answers. OMount Kilimanjaro O Nile River Ngorongoro Crater Okavango Delta Red Sea Reef Sahara Desert O Serengeti PLS HELP ME

Which factor contributed to the rise of african empires such as ghana and mali?

The provisions of subpart d, of the hhs regulations, additional protections for children involved as subjects in research apply to: all research involving childrenall research that is > minimal riskall research funded by any federal agencyall research funded by hhs

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.