The name that given is Muckrakers
The term was popularly coined during the development of early progressive era in the period of 1890s - 1920s.
Back then, the government and the establishments were known to be really corrupt and many Muckrakers started to do investigative journalism to find out the truth about their practice.
Answer:
Quizás la diferencia física más pronunciada entre mamuts y elefantes son sus colmillos. Los colmillos de mamut eran típicamente más largos en proporción al tamaño del cuerpo y más dramáticamente retorcidos y curvados que los colmillos de elefante.
D. The United States Constitution, it holds the basic laws of our nation, "land"