Help ASAP?:)
the sources will help to answer the questions:)

the constitution of the united states gave congress the absolute authority over immigration laws

answer; ///i do believe that the correct answer is (b) ///middle colony

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on

john maynrd keynes developed new economic respose to the                           ( b. great depression if the 1930's)