Which set of statements is an example of contradicting opinions or claims?

Why do you think that historians use the word “revolution” to describe important changes in agriculture? how did the green revolution and other agricultural revolutions change the lives of billions of people? < < read less

Select the phrase that best describes "race."a. religiously distinct b. different species c. socially constructed d. factually accurate

What is douglass's purpose in the speech "the hypocrisy of american slavery, july 4, 1852" ? how does douglass reveal his purpose to the reader?