The private papers of what scientist had to be decontaminated for two years in the 1990's before being put on file at the national library in paris? 577 points

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

It is really hard for me right know

How many atoms of nitrogen are in the chemical formula ni(w on