Explain how buying stocks “on margin” caused black tuesday?

Which phrase describes one of the reforms the national convention made up to improve the lives of ordinary french people

States' compliance with the native american reservation treaties drawn up by the federal government for the native american nations is:

    which of the following was anecological  result of european exploration from 1400 to 1800?   a.  increased trade with east asia      b.  the spread of epidemic diseases      c.  expansion of english territory      d.  the spread of christianity