A. Ida B. Wells
He urged African Americans to protest by refusing to ride street-cards, to stop buying from white owned stores and only buy from black owned stores
Answer: this is an example of <u>operant variability.</u>
Explanation:
Operant variability means that results of an operation may vary so responses are sometimes easy to predict, at other times responding seems highly variable, unpredictable, or even random. The inability to predict is generally attributed to ignorance of controlling variables.
<span>The Mahabharata and Ramayana has the epic poems mix moral lessons with dramatic action and exciting stories that appeal to a large audience. Good and evil are clear and distinct. Through moral. Hence the poems from it have the extreme capability to maintain the reader’s attitude into a positive side on his or her life.</span>
The answer to this question is the Drought of 1924.