8. Why does heated air rise up

Which of teh following would explain the importance of the trans-siberian railroad to russia's economy? (schoology test)

Why did the belgian parliament pass laws to decentralize its government? a. to increase trade with neighboring luxembourg b. to decrease the political power enjoyed by the flemish c. to enable belgium to join the european union d. to reduce tensions between belgium's two main ethnic groups

Which of these fragmental sedimentary rocks would most likely form farthest from the land?