Which of the following was a common problem in tenement buildings in the early 1900s

In this diary only in researching sidney montz or can it be used to research broader subjects

Question 1(multiple choice worth 1 points) (02.03 mc) which best describes the structure of the aryan civilization in the indus river valley? a.) there was a class system based on race, and people could not escape from it. b.) there were only two social classes, but people moved between the classes easily. c.) the people were born into social classes and remained there all their lives. d.) the people were all considered to be from the same social class.

An object made by people or used in the past