What did lincoln steffens, jacob riis, ida tarbell, and john spargo have in common?

The correct answer is they were all mucrakers.

A muckraker is an investigative journalist or reporter who tries to expose corruption or societal issues in America. In this case, all of the people mentioned in the questions are considered muckrakers. For example, Jacob Riis wrote the book How the Other Half Lives. This book was about the poor living conditions in tenements in New York city. These tenements housed thousands of immigrants who lacked basic necessities in their homes.

they thoght they were going to nuke each other

the anterior pituitary gland produces the following hormones and releases them into the bloodstream: psychotropic hormone, which stimulates the adrenal glands to secrete steroid hormones, principally cortisol. growth hormone, which regulates growth, metabolism and body       hope i