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

Your answer would be b, mantle.

Convection currents is the flow which happens because cooler liquid is denser and hotter is less dense. This means the cooler liquid sinks, then gets hotter (as it is therefore then closer to the hot core), rises, then gets cooler, and then repeat.

This can only really happen with liquids or gases, as solids can't exactly flow. Therefore, it cannot be a, continents, c, lithosphere (the outside solid layer of the Earth), or d, inner core (as surprisingly, the inner core is solid)

Therefore, your answer is b, the mantle.

chinese civil war took place over a long period of time between 1927 and 1950. the war was interrupted when japan invaded china in 1936 and by world war ii. the war was fought between the nationalist government of china, also called the kuomintang (kmt), and the communist party of china (cpc). 

tocharian and anatolian were belaved to become extinct during the ninth century. =)