I need your help pls im stuck im bad at social studies :(

Segregation or discriminatory practices that occur even when there is no explicit legal enforcement

As you drive in to school, you hear a random radio-show caller arguing that sun exposure really has not been shown to cause skin cancer and that some research suggests that skin cancer is completely genetic and not related to sun exposure at all. at the time, you think that this is a silly argument and that the caller does not know what she is talking about. however, two months later, you are outside without wearing sunscreen, and you find yourself remembering that you had read something about how the sun actually does not cause skin cancer. this process is evidence that has influenced your attitude

During the 1500s,most rulers supported established a. political systems. d. none of the above b. churches c. freedom of speech