Which ethnic group is most dominant in russia

Which area on the map would be most likely to have the most oil exploration in since the start of the 21st century? a) b) c) d) plz me

One of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.