Describe how the Soviet Union became an oligarchy. Use details to support your answer.

If steel is more dense that lake water, why can a boat float

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?