Jacob Riis took pictures of what ?

By the late 1880s, Riis had begun photographing the interiors and exteriors of New York slums with a flash lamp. Those photos are early examples of flashbulb photography. Riis used the images to dramatize his lectures and books.

Explanation:

its c

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.