What does the detection of synchrotron radiation surrounding m87 mean?

Which action best represents the policy of appeasement followed by britain and france prior to the start of world war ii? (a)allowing hitler to annex the sudetenland as part of the munich agreement (b)signing the nazi-soviet pact binding hitler and stalin to peaceful relations (c)sending troops to fight with the liberals during the spanish civil war (d)forbidding the sale of arms to any nation at war

Who won the debate over ratifying the constitution

This is a crossword assignment for psychology 8 letter word a benefit of observational research is that it often generates