Answer:
4. both a and c
Explanation:
because they were both written by someone who was there during the event (its a first hand experience)
During the 1920's the economy would be recovering from the war they lost (World War 1) but in the late 1920's and early 1930's they were starting to get back up on their feet and got to full strength by 1939, which is when Hitler and his Reich started their "Blitzkrieg".
Properties that help geologists identify a mineral in a rock are: color, hardness, luster, crystal forms, density, and cleavage. Crystal form, cleavage, and hardness are determined primarily by the crystal structure at the atomic level. Color and density are determined primarily by the chemical composition.
I don’t know if this is correct or not.
