Question 5 Southern states opposed the Compromise of 1850 because:
A
California was admitted as a free state which gave the North control of Congress
B
It closed western territories to the spread of slavery
с
It allowed popular sovereignty to decide the slavery issue in the western territories
D
It created a high tariff on foreign goods
©2021
Illuminate Education Inc.

can you show the map , i'll be able to update my answer

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.