What source would be best for finding out what exact year it was in the 1870s when we was most productive or when rainfall is highest

Who owned most of the resources in a market or capitalistic economy? in a socialist or command economy? what determines ownership in a traditional economy. (economies)

[bws.05]where would uncharged particles be most likely found in an atom? o on the electrons o inside the protons o inside the nucleus outside the nucleus

Why is immigration so important today?