Who invented a lightweight vacuum cleaner in 1908

Which factors influenced the growth of christianity in east africa? select all that apply. a. mansa munsa’s pilgrimage to mecca b. trade with greeks and romans c. influence of a captured syrian servant d. invasion of mali’s christian military e. caravans of christians traveling through the trans-sahara trade network

Parliament passed several acts to britain meet its war debts. determine whether the following descriptions apply to the stamp act or the sugar act- passed by parliament in 1764- passed by parliament in 1765- enforced payment of taxes on foreign molasses- taxed all types of printed materialsstamp act: sugar act:

Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true.b) some other scientific experts read the papers and provide quality control by eliminating many mistakes.c) an editor reads the papers, to make sure that all the semicolons are in the correct places.d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog.e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.